<?xml version="1.0" encoding="UTF-8"?>

<!--XBRL Document Created with Wdesk from Workiva-->
<!--Copyright 2020 Workiva-->
<!--r:47c6aa7e-0d95-4aa7-86e3-376930897f6c,g:43e564c4-12d9-429b-9ecf-8f7f306ed7db-->
<link:linkbase xmlns:link="http://www.xbrl.org/2003/linkbase" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.xbrl.org/2003/linkbase http://www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd">
  <link:roleRef roleURI="http://www.westpharma.com/role/DocumentandEntityInformation" xlink:type="simple" xlink:href="wst-20200331.xsd#DocumentandEntityInformation"/>
  <link:presentationLink xlink:role="http://www.westpharma.com/role/DocumentandEntityInformation" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_wst_DocumentAndEntityInformationAbstract_aee1a6b7-418b-4a26-9b07-ef59c3fae982" xlink:href="wst-20200331.xsd#wst_DocumentAndEntityInformationAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_DocumentType_421715f1-77dd-4c8a-9e09-a101691964e1" xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_DocumentType"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_wst_DocumentAndEntityInformationAbstract_aee1a6b7-418b-4a26-9b07-ef59c3fae982" xlink:to="loc_dei_DocumentType_421715f1-77dd-4c8a-9e09-a101691964e1" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_DocumentQuarterlyReport_32154b5b-e654-4637-8ec4-d624a1cf9ff4" xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_DocumentQuarterlyReport"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_wst_DocumentAndEntityInformationAbstract_aee1a6b7-418b-4a26-9b07-ef59c3fae982" xlink:to="loc_dei_DocumentQuarterlyReport_32154b5b-e654-4637-8ec4-d624a1cf9ff4" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_DocumentPeriodEndDate_5f49564c-d002-46ff-a9de-827305cb8740" xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_DocumentPeriodEndDate"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_wst_DocumentAndEntityInformationAbstract_aee1a6b7-418b-4a26-9b07-ef59c3fae982" xlink:to="loc_dei_DocumentPeriodEndDate_5f49564c-d002-46ff-a9de-827305cb8740" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_DocumentTransitionReport_48967538-fe93-4f89-a27f-8656c32820b8" xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_DocumentTransitionReport"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_wst_DocumentAndEntityInformationAbstract_aee1a6b7-418b-4a26-9b07-ef59c3fae982" xlink:to="loc_dei_DocumentTransitionReport_48967538-fe93-4f89-a27f-8656c32820b8" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityFileNumber_9b01a40b-8bf7-4123-b58e-2585691f6422" xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_EntityFileNumber"/>
    <link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_wst_DocumentAndEntityInformationAbstract_aee1a6b7-418b-4a26-9b07-ef59c3fae982" xlink:to="loc_dei_EntityFileNumber_9b01a40b-8bf7-4123-b58e-2585691f6422" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityRegistrantName_84802983-e7ac-49a0-b98d-e06585621110" xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_EntityRegistrantName"/>
    <link:presentationArc order="6" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_wst_DocumentAndEntityInformationAbstract_aee1a6b7-418b-4a26-9b07-ef59c3fae982" xlink:to="loc_dei_EntityRegistrantName_84802983-e7ac-49a0-b98d-e06585621110" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityIncorporationStateCountryCode_689bec15-fc8b-424d-9f84-37f5a103570b" xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_EntityIncorporationStateCountryCode"/>
    <link:presentationArc order="7" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_wst_DocumentAndEntityInformationAbstract_aee1a6b7-418b-4a26-9b07-ef59c3fae982" xlink:to="loc_dei_EntityIncorporationStateCountryCode_689bec15-fc8b-424d-9f84-37f5a103570b" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityTaxIdentificationNumber_fb8b15e5-4d69-4e20-8bd8-a4da150c4946" xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_EntityTaxIdentificationNumber"/>
    <link:presentationArc order="8" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_wst_DocumentAndEntityInformationAbstract_aee1a6b7-418b-4a26-9b07-ef59c3fae982" xlink:to="loc_dei_EntityTaxIdentificationNumber_fb8b15e5-4d69-4e20-8bd8-a4da150c4946" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityAddressAddressLine1_f405657a-bfcd-4fb8-8c63-cb530f8c25de" xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_EntityAddressAddressLine1"/>
    <link:presentationArc order="9" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_wst_DocumentAndEntityInformationAbstract_aee1a6b7-418b-4a26-9b07-ef59c3fae982" xlink:to="loc_dei_EntityAddressAddressLine1_f405657a-bfcd-4fb8-8c63-cb530f8c25de" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityAddressCityOrTown_afc3cb1e-c5ad-4dc0-885f-0b59dbaa3e7f" xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_EntityAddressCityOrTown"/>
    <link:presentationArc order="10" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_wst_DocumentAndEntityInformationAbstract_aee1a6b7-418b-4a26-9b07-ef59c3fae982" xlink:to="loc_dei_EntityAddressCityOrTown_afc3cb1e-c5ad-4dc0-885f-0b59dbaa3e7f" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityAddressStateOrProvince_a29210bf-7490-4e80-a04f-7f12b5778244" xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_EntityAddressStateOrProvince"/>
    <link:presentationArc order="11" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_wst_DocumentAndEntityInformationAbstract_aee1a6b7-418b-4a26-9b07-ef59c3fae982" xlink:to="loc_dei_EntityAddressStateOrProvince_a29210bf-7490-4e80-a04f-7f12b5778244" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityAddressPostalZipCode_4c56ea6a-dae3-41c7-802e-5f9b36686086" xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_EntityAddressPostalZipCode"/>
    <link:presentationArc order="12" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_wst_DocumentAndEntityInformationAbstract_aee1a6b7-418b-4a26-9b07-ef59c3fae982" xlink:to="loc_dei_EntityAddressPostalZipCode_4c56ea6a-dae3-41c7-802e-5f9b36686086" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_CityAreaCode_929569cd-1947-4530-81b9-7692db0d61f1" xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_CityAreaCode"/>
    <link:presentationArc order="13" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_wst_DocumentAndEntityInformationAbstract_aee1a6b7-418b-4a26-9b07-ef59c3fae982" xlink:to="loc_dei_CityAreaCode_929569cd-1947-4530-81b9-7692db0d61f1" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_LocalPhoneNumber_aa63ac10-7ee7-4aab-953b-bf8259ce8b91" xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_LocalPhoneNumber"/>
    <link:presentationArc order="14" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_wst_DocumentAndEntityInformationAbstract_aee1a6b7-418b-4a26-9b07-ef59c3fae982" xlink:to="loc_dei_LocalPhoneNumber_aa63ac10-7ee7-4aab-953b-bf8259ce8b91" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityCurrentReportingStatus_8f5600ba-73d9-43d7-b3aa-abffd4eea690" xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_EntityCurrentReportingStatus"/>
    <link:presentationArc order="15" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_wst_DocumentAndEntityInformationAbstract_aee1a6b7-418b-4a26-9b07-ef59c3fae982" xlink:to="loc_dei_EntityCurrentReportingStatus_8f5600ba-73d9-43d7-b3aa-abffd4eea690" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityInteractiveDataCurrent_ae880465-27df-41a1-a64b-96268a0a1a5a" xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_EntityInteractiveDataCurrent"/>
    <link:presentationArc order="16" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_wst_DocumentAndEntityInformationAbstract_aee1a6b7-418b-4a26-9b07-ef59c3fae982" xlink:to="loc_dei_EntityInteractiveDataCurrent_ae880465-27df-41a1-a64b-96268a0a1a5a" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityFilerCategory_7b43a634-3306-4a5e-928c-70b02f0a8620" xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_EntityFilerCategory"/>
    <link:presentationArc order="17" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_wst_DocumentAndEntityInformationAbstract_aee1a6b7-418b-4a26-9b07-ef59c3fae982" xlink:to="loc_dei_EntityFilerCategory_7b43a634-3306-4a5e-928c-70b02f0a8620" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntitySmallBusiness_c29a7443-2ab9-4c97-b0e7-86a08c4c9284" xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_EntitySmallBusiness"/>
    <link:presentationArc order="18" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_wst_DocumentAndEntityInformationAbstract_aee1a6b7-418b-4a26-9b07-ef59c3fae982" xlink:to="loc_dei_EntitySmallBusiness_c29a7443-2ab9-4c97-b0e7-86a08c4c9284" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityEmergingGrowthCompany_60aff708-8d07-4d45-84a9-a4173ebef39b" xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_EntityEmergingGrowthCompany"/>
    <link:presentationArc order="19" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_wst_DocumentAndEntityInformationAbstract_aee1a6b7-418b-4a26-9b07-ef59c3fae982" xlink:to="loc_dei_EntityEmergingGrowthCompany_60aff708-8d07-4d45-84a9-a4173ebef39b" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityShellCompany_83a9cb64-9aea-470a-8096-d795e0a668c7" xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_EntityShellCompany"/>
    <link:presentationArc order="20" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_wst_DocumentAndEntityInformationAbstract_aee1a6b7-418b-4a26-9b07-ef59c3fae982" xlink:to="loc_dei_EntityShellCompany_83a9cb64-9aea-470a-8096-d795e0a668c7" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_Security12bTitle_ba9538ca-127d-45ad-8d1b-490a61ffba9c" xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_Security12bTitle"/>
    <link:presentationArc order="21" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_wst_DocumentAndEntityInformationAbstract_aee1a6b7-418b-4a26-9b07-ef59c3fae982" xlink:to="loc_dei_Security12bTitle_ba9538ca-127d-45ad-8d1b-490a61ffba9c" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_TradingSymbol_bd33b2c4-ea76-4dd6-bd07-79688febf6dd" xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_TradingSymbol"/>
    <link:presentationArc order="22" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_wst_DocumentAndEntityInformationAbstract_aee1a6b7-418b-4a26-9b07-ef59c3fae982" xlink:to="loc_dei_TradingSymbol_bd33b2c4-ea76-4dd6-bd07-79688febf6dd" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_SecurityExchangeName_6e9aca46-3670-4e74-8bb8-58e3ad5c6e83" xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_SecurityExchangeName"/>
    <link:presentationArc order="23" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_wst_DocumentAndEntityInformationAbstract_aee1a6b7-418b-4a26-9b07-ef59c3fae982" xlink:to="loc_dei_SecurityExchangeName_6e9aca46-3670-4e74-8bb8-58e3ad5c6e83" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityCentralIndexKey_837cf831-c496-4c32-8c0a-685d237745e4" xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_EntityCentralIndexKey"/>
    <link:presentationArc order="24" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_wst_DocumentAndEntityInformationAbstract_aee1a6b7-418b-4a26-9b07-ef59c3fae982" xlink:to="loc_dei_EntityCentralIndexKey_837cf831-c496-4c32-8c0a-685d237745e4" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_CurrentFiscalYearEndDate_f2c29f4a-ec17-4ae2-ac9d-19614974a93f" xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_CurrentFiscalYearEndDate"/>
    <link:presentationArc order="25" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_wst_DocumentAndEntityInformationAbstract_aee1a6b7-418b-4a26-9b07-ef59c3fae982" xlink:to="loc_dei_CurrentFiscalYearEndDate_f2c29f4a-ec17-4ae2-ac9d-19614974a93f" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_DocumentFiscalYearFocus_2c4ef47b-8f15-49ca-bc28-c7d49c47e1ee" xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_DocumentFiscalYearFocus"/>
    <link:presentationArc order="26" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_wst_DocumentAndEntityInformationAbstract_aee1a6b7-418b-4a26-9b07-ef59c3fae982" xlink:to="loc_dei_DocumentFiscalYearFocus_2c4ef47b-8f15-49ca-bc28-c7d49c47e1ee" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_DocumentFiscalPeriodFocus_76da38a0-3453-462a-bffc-f0a1828b185b" xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_DocumentFiscalPeriodFocus"/>
    <link:presentationArc order="27" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_wst_DocumentAndEntityInformationAbstract_aee1a6b7-418b-4a26-9b07-ef59c3fae982" xlink:to="loc_dei_DocumentFiscalPeriodFocus_76da38a0-3453-462a-bffc-f0a1828b185b" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_AmendmentFlag_78774d8d-e9f1-475c-897d-0a5d8697c86b" xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_AmendmentFlag"/>
    <link:presentationArc order="28" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_wst_DocumentAndEntityInformationAbstract_aee1a6b7-418b-4a26-9b07-ef59c3fae982" xlink:to="loc_dei_AmendmentFlag_78774d8d-e9f1-475c-897d-0a5d8697c86b" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityCommonStockSharesOutstanding_82a03e60-0b3b-4318-8726-168cae1b13e9" xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_EntityCommonStockSharesOutstanding"/>
    <link:presentationArc order="29" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_wst_DocumentAndEntityInformationAbstract_aee1a6b7-418b-4a26-9b07-ef59c3fae982" xlink:to="loc_dei_EntityCommonStockSharesOutstanding_82a03e60-0b3b-4318-8726-168cae1b13e9" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.westpharma.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFINCOMEUNAUDITED" xlink:type="simple" xlink:href="wst-20200331.xsd#CONDENSEDCONSOLIDATEDSTATEMENTSOFINCOMEUNAUDITED"/>
  <link:presentationLink xlink:role="http://www.westpharma.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFINCOMEUNAUDITED" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeStatementAbstract_1fe30798-6718-43d7-a100-9618f491704b" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_IncomeStatementAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Revenues_867a7e7b-f516-4866-94a7-fdcdc60c9853" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_Revenues"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeStatementAbstract_1fe30798-6718-43d7-a100-9618f491704b" xlink:to="loc_us-gaap_Revenues_867a7e7b-f516-4866-94a7-fdcdc60c9853" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CostOfGoodsAndServicesSold_62002ef0-74b6-45a2-85f7-d166e34e2f5f" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_CostOfGoodsAndServicesSold"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeStatementAbstract_1fe30798-6718-43d7-a100-9618f491704b" xlink:to="loc_us-gaap_CostOfGoodsAndServicesSold_62002ef0-74b6-45a2-85f7-d166e34e2f5f" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GrossProfit_02057b04-ff80-4203-9303-028f03fdbb8a" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_GrossProfit"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeStatementAbstract_1fe30798-6718-43d7-a100-9618f491704b" xlink:to="loc_us-gaap_GrossProfit_02057b04-ff80-4203-9303-028f03fdbb8a" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/totalLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ResearchAndDevelopmentExpense_f74631f1-0a36-4dff-ae45-fce7a0b81a44" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ResearchAndDevelopmentExpense"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeStatementAbstract_1fe30798-6718-43d7-a100-9618f491704b" xlink:to="loc_us-gaap_ResearchAndDevelopmentExpense_f74631f1-0a36-4dff-ae45-fce7a0b81a44" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SellingGeneralAndAdministrativeExpense_9b3788b8-84a5-4084-b8bb-af5c86c9f109" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_SellingGeneralAndAdministrativeExpense"/>
    <link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeStatementAbstract_1fe30798-6718-43d7-a100-9618f491704b" xlink:to="loc_us-gaap_SellingGeneralAndAdministrativeExpense_9b3788b8-84a5-4084-b8bb-af5c86c9f109" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_wst_OtherIncomeExpense_39e785b1-1371-40ea-87df-ab591f055074" xlink:href="wst-20200331.xsd#wst_OtherIncomeExpense"/>
    <link:presentationArc order="6" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeStatementAbstract_1fe30798-6718-43d7-a100-9618f491704b" xlink:to="loc_wst_OtherIncomeExpense_39e785b1-1371-40ea-87df-ab591f055074" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingIncomeLoss_11cc1baf-61a5-4e38-9c16-c5fda0ecb716" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_OperatingIncomeLoss"/>
    <link:presentationArc order="7" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeStatementAbstract_1fe30798-6718-43d7-a100-9618f491704b" xlink:to="loc_us-gaap_OperatingIncomeLoss_11cc1baf-61a5-4e38-9c16-c5fda0ecb716" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/totalLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InterestExpense_396e8194-eb66-4110-b1a2-87f280a8b382" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_InterestExpense"/>
    <link:presentationArc order="8" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeStatementAbstract_1fe30798-6718-43d7-a100-9618f491704b" xlink:to="loc_us-gaap_InterestExpense_396e8194-eb66-4110-b1a2-87f280a8b382" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InvestmentIncomeNet_5df9d1ca-7ed6-4813-abaa-608169b752a0" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_InvestmentIncomeNet"/>
    <link:presentationArc order="9" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeStatementAbstract_1fe30798-6718-43d7-a100-9618f491704b" xlink:to="loc_us-gaap_InvestmentIncomeNet_5df9d1ca-7ed6-4813-abaa-608169b752a0" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherNonoperatingIncomeExpense_6d0c3ab1-7517-4b58-8d27-bb37300e902c" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_OtherNonoperatingIncomeExpense"/>
    <link:presentationArc order="10" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeStatementAbstract_1fe30798-6718-43d7-a100-9618f491704b" xlink:to="loc_us-gaap_OtherNonoperatingIncomeExpense_6d0c3ab1-7517-4b58-8d27-bb37300e902c" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments_8712f24b-72af-47ca-bfca-be77c619657c" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments"/>
    <link:presentationArc order="11" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeStatementAbstract_1fe30798-6718-43d7-a100-9618f491704b" xlink:to="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments_8712f24b-72af-47ca-bfca-be77c619657c" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/totalLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeTaxExpenseBenefit_007ab915-ef68-45d0-ac76-1259169f8773" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_IncomeTaxExpenseBenefit"/>
    <link:presentationArc order="12" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeStatementAbstract_1fe30798-6718-43d7-a100-9618f491704b" xlink:to="loc_us-gaap_IncomeTaxExpenseBenefit_007ab915-ef68-45d0-ac76-1259169f8773" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeLossFromEquityMethodInvestments_dafbb08b-8391-446d-84dc-dee162d26f82" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_IncomeLossFromEquityMethodInvestments"/>
    <link:presentationArc order="13" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeStatementAbstract_1fe30798-6718-43d7-a100-9618f491704b" xlink:to="loc_us-gaap_IncomeLossFromEquityMethodInvestments_dafbb08b-8391-446d-84dc-dee162d26f82" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProfitLoss_65957d22-8b2d-46d6-8d04-faf9501d1b02" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ProfitLoss"/>
    <link:presentationArc order="14" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeStatementAbstract_1fe30798-6718-43d7-a100-9618f491704b" xlink:to="loc_us-gaap_ProfitLoss_65957d22-8b2d-46d6-8d04-faf9501d1b02" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/totalLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EarningsPerShareAbstract_5bb7bbd5-af7f-48b2-93cd-73669b0b06e9" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_EarningsPerShareAbstract"/>
    <link:presentationArc order="15" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeStatementAbstract_1fe30798-6718-43d7-a100-9618f491704b" xlink:to="loc_us-gaap_EarningsPerShareAbstract_5bb7bbd5-af7f-48b2-93cd-73669b0b06e9" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EarningsPerShareBasic_d383ee05-4a74-45d6-96c0-79b566aa1dd3" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_EarningsPerShareBasic"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EarningsPerShareAbstract_5bb7bbd5-af7f-48b2-93cd-73669b0b06e9" xlink:to="loc_us-gaap_EarningsPerShareBasic_d383ee05-4a74-45d6-96c0-79b566aa1dd3" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EarningsPerShareDiluted_439de0de-8715-4666-bb9d-160076c0e199" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_EarningsPerShareDiluted"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EarningsPerShareAbstract_5bb7bbd5-af7f-48b2-93cd-73669b0b06e9" xlink:to="loc_us-gaap_EarningsPerShareDiluted_439de0de-8715-4666-bb9d-160076c0e199" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_WeightedAverageNumberOfSharesOutstandingDilutedDisclosureItemsAbstract_8b7ae1d1-4b49-4049-b6d7-5e554f3a054f" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_WeightedAverageNumberOfSharesOutstandingDilutedDisclosureItemsAbstract"/>
    <link:presentationArc order="16" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeStatementAbstract_1fe30798-6718-43d7-a100-9618f491704b" xlink:to="loc_us-gaap_WeightedAverageNumberOfSharesOutstandingDilutedDisclosureItemsAbstract_8b7ae1d1-4b49-4049-b6d7-5e554f3a054f" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_WeightedAverageNumberOfSharesOutstandingBasic_4ec65a32-fe62-4cf5-b606-690603047d0f" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_WeightedAverageNumberOfSharesOutstandingBasic"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_WeightedAverageNumberOfSharesOutstandingDilutedDisclosureItemsAbstract_8b7ae1d1-4b49-4049-b6d7-5e554f3a054f" xlink:to="loc_us-gaap_WeightedAverageNumberOfSharesOutstandingBasic_4ec65a32-fe62-4cf5-b606-690603047d0f" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding_556b863a-c28a-460d-842b-e209709d2288" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_WeightedAverageNumberOfSharesOutstandingDilutedDisclosureItemsAbstract_8b7ae1d1-4b49-4049-b6d7-5e554f3a054f" xlink:to="loc_us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding_556b863a-c28a-460d-842b-e209709d2288" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.westpharma.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFCOMPREHENSIVEINCOMEUNAUDITED" xlink:type="simple" xlink:href="wst-20200331.xsd#CONDENSEDCONSOLIDATEDSTATEMENTSOFCOMPREHENSIVEINCOMEUNAUDITED"/>
  <link:presentationLink xlink:role="http://www.westpharma.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFCOMPREHENSIVEINCOMEUNAUDITED" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementOfIncomeAndComprehensiveIncomeAbstract_cde6ef71-1c94-4dd3-a942-596f9dc20da4" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_StatementOfIncomeAndComprehensiveIncomeAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProfitLoss_f1c32afa-0bf3-4574-a509-5a9a043359ad" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ProfitLoss"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementOfIncomeAndComprehensiveIncomeAbstract_cde6ef71-1c94-4dd3-a942-596f9dc20da4" xlink:to="loc_us-gaap_ProfitLoss_f1c32afa-0bf3-4574-a509-5a9a043359ad" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTaxPeriodIncreaseDecreaseAbstract_bb0930d1-88f8-4f66-9735-6d3e7c25d822" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_OtherComprehensiveIncomeLossNetOfTaxPeriodIncreaseDecreaseAbstract"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementOfIncomeAndComprehensiveIncomeAbstract_cde6ef71-1c94-4dd3-a942-596f9dc20da4" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTaxPeriodIncreaseDecreaseAbstract_bb0930d1-88f8-4f66-9735-6d3e7c25d822" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax_1256b271-c26d-4825-bdbf-7312df6c129e" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTaxPeriodIncreaseDecreaseAbstract_bb0930d1-88f8-4f66-9735-6d3e7c25d822" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax_1256b271-c26d-4825-bdbf-7312df6c129e" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax_c8f850ca-b60b-4224-853f-3ad59e32ab9e" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTaxPeriodIncreaseDecreaseAbstract_bb0930d1-88f8-4f66-9735-6d3e7c25d822" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax_c8f850ca-b60b-4224-853f-3ad59e32ab9e" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax_1d8d12f3-1d7a-426b-adb1-bf1a9a9d42d9" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTaxPeriodIncreaseDecreaseAbstract_bb0930d1-88f8-4f66-9735-6d3e7c25d822" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax_1d8d12f3-1d7a-426b-adb1-bf1a9a9d42d9" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesNetOfTax_e24c1a5b-4c00-4510-b315-36f1c4f7869a" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesNetOfTax"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTaxPeriodIncreaseDecreaseAbstract_bb0930d1-88f8-4f66-9735-6d3e7c25d822" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesNetOfTax_e24c1a5b-4c00-4510-b315-36f1c4f7869a" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTax_7f36b1b9-fc82-4ac2-943e-cd2fbe6582c1" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_OtherComprehensiveIncomeLossNetOfTax"/>
    <link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTaxPeriodIncreaseDecreaseAbstract_bb0930d1-88f8-4f66-9735-6d3e7c25d822" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTax_7f36b1b9-fc82-4ac2-943e-cd2fbe6582c1" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/totalLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest_df6caf21-f63a-4165-a6a1-b2c245ca43e0" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementOfIncomeAndComprehensiveIncomeAbstract_cde6ef71-1c94-4dd3-a942-596f9dc20da4" xlink:to="loc_us-gaap_ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest_df6caf21-f63a-4165-a6a1-b2c245ca43e0" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/totalLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.westpharma.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFCOMPREHENSIVEINCOMEUNAUDITEDParenthetical" xlink:type="simple" xlink:href="wst-20200331.xsd#CONDENSEDCONSOLIDATEDSTATEMENTSOFCOMPREHENSIVEINCOMEUNAUDITEDParenthetical"/>
  <link:presentationLink xlink:role="http://www.westpharma.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFCOMPREHENSIVEINCOMEUNAUDITEDParenthetical" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementOfIncomeAndComprehensiveIncomeAbstract_3f9e4d3f-8a41-4107-97bd-81fb66dd41e4" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_StatementOfIncomeAndComprehensiveIncomeAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansTax_71faecfa-1eaa-4d92-b1a6-10e860c1f07c" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansTax"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementOfIncomeAndComprehensiveIncomeAbstract_3f9e4d3f-8a41-4107-97bd-81fb66dd41e4" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansTax_71faecfa-1eaa-4d92-b1a6-10e860c1f07c" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossAvailableForSaleSecuritiesTax_9774e446-d8b2-4ea7-9b1a-0551dc575e12" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_OtherComprehensiveIncomeLossAvailableForSaleSecuritiesTax"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementOfIncomeAndComprehensiveIncomeAbstract_3f9e4d3f-8a41-4107-97bd-81fb66dd41e4" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossAvailableForSaleSecuritiesTax_9774e446-d8b2-4ea7-9b1a-0551dc575e12" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesTax_a73a23b2-26e0-428c-9a6c-87d08bc291e2" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesTax"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementOfIncomeAndComprehensiveIncomeAbstract_3f9e4d3f-8a41-4107-97bd-81fb66dd41e4" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesTax_a73a23b2-26e0-428c-9a6c-87d08bc291e2" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.westpharma.com/role/CONDENSEDCONSOLIDATEDBALANCESHEETSUNAUDITED" xlink:type="simple" xlink:href="wst-20200331.xsd#CONDENSEDCONSOLIDATEDBALANCESHEETSUNAUDITED"/>
  <link:presentationLink xlink:role="http://www.westpharma.com/role/CONDENSEDCONSOLIDATEDBALANCESHEETSUNAUDITED" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BalanceSheetRelatedDisclosuresAbstract_56a2e499-0481-432e-84ac-19c664e76b86" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_BalanceSheetRelatedDisclosuresAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetsAbstract_800f7b65-38af-46ac-8784-102907612827" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_AssetsAbstract"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_BalanceSheetRelatedDisclosuresAbstract_56a2e499-0481-432e-84ac-19c664e76b86" xlink:to="loc_us-gaap_AssetsAbstract_800f7b65-38af-46ac-8784-102907612827" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetsCurrentAbstract_b063eb56-b6bd-49d5-a4ec-1020ea4aa2e4" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_AssetsCurrentAbstract"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AssetsAbstract_800f7b65-38af-46ac-8784-102907612827" xlink:to="loc_us-gaap_AssetsCurrentAbstract_b063eb56-b6bd-49d5-a4ec-1020ea4aa2e4" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashAndCashEquivalentsAtCarryingValue_9259c342-ba8e-41c0-9fa4-0ba4e6ed7a18" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_CashAndCashEquivalentsAtCarryingValue"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AssetsCurrentAbstract_b063eb56-b6bd-49d5-a4ec-1020ea4aa2e4" xlink:to="loc_us-gaap_CashAndCashEquivalentsAtCarryingValue_9259c342-ba8e-41c0-9fa4-0ba4e6ed7a18" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccountsReceivableNetCurrent_ccd4ecf3-94da-434c-8fce-9ad0007334f0" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_AccountsReceivableNetCurrent"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AssetsCurrentAbstract_b063eb56-b6bd-49d5-a4ec-1020ea4aa2e4" xlink:to="loc_us-gaap_AccountsReceivableNetCurrent_ccd4ecf3-94da-434c-8fce-9ad0007334f0" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InventoryNet_b746ecf2-c446-4252-a95c-f90f033bc1eb" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_InventoryNet"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AssetsCurrentAbstract_b063eb56-b6bd-49d5-a4ec-1020ea4aa2e4" xlink:to="loc_us-gaap_InventoryNet_b746ecf2-c446-4252-a95c-f90f033bc1eb" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherAssetsCurrent_59adf111-2b87-4b13-86a7-0090e2ecf384" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_OtherAssetsCurrent"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AssetsCurrentAbstract_b063eb56-b6bd-49d5-a4ec-1020ea4aa2e4" xlink:to="loc_us-gaap_OtherAssetsCurrent_59adf111-2b87-4b13-86a7-0090e2ecf384" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetsCurrent_2116db8c-5d8f-4f50-9ca2-27d0413c450d" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_AssetsCurrent"/>
    <link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AssetsCurrentAbstract_b063eb56-b6bd-49d5-a4ec-1020ea4aa2e4" xlink:to="loc_us-gaap_AssetsCurrent_2116db8c-5d8f-4f50-9ca2-27d0413c450d" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/totalLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentGross_4487245e-32c1-4f24-acff-0276f512fd14" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_PropertyPlantAndEquipmentGross"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AssetsAbstract_800f7b65-38af-46ac-8784-102907612827" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentGross_4487245e-32c1-4f24-acff-0276f512fd14" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment_bca5a7ee-7845-4388-b74f-99180d0fbb85" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AssetsAbstract_800f7b65-38af-46ac-8784-102907612827" xlink:to="loc_us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment_bca5a7ee-7845-4388-b74f-99180d0fbb85" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentNet_e6c80d3d-bf92-4258-955e-35d4d481a741" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_PropertyPlantAndEquipmentNet"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AssetsAbstract_800f7b65-38af-46ac-8784-102907612827" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentNet_e6c80d3d-bf92-4258-955e-35d4d481a741" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/totalLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingLeaseRightOfUseAsset_70273753-b8a5-4e27-8a64-96ba5f28a138" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_OperatingLeaseRightOfUseAsset"/>
    <link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AssetsAbstract_800f7b65-38af-46ac-8784-102907612827" xlink:to="loc_us-gaap_OperatingLeaseRightOfUseAsset_70273753-b8a5-4e27-8a64-96ba5f28a138" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures_554575eb-bff4-44f7-bce0-273e11d0aa36" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures"/>
    <link:presentationArc order="6" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AssetsAbstract_800f7b65-38af-46ac-8784-102907612827" xlink:to="loc_us-gaap_InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures_554575eb-bff4-44f7-bce0-273e11d0aa36" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Goodwill_ce5489f3-0fa5-493a-98ff-9e8d97a6be3e" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_Goodwill"/>
    <link:presentationArc order="7" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AssetsAbstract_800f7b65-38af-46ac-8784-102907612827" xlink:to="loc_us-gaap_Goodwill_ce5489f3-0fa5-493a-98ff-9e8d97a6be3e" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IntangibleAssetsNetExcludingGoodwill_88a93de6-8f0a-4523-a96a-60fc4cd9a2c8" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_IntangibleAssetsNetExcludingGoodwill"/>
    <link:presentationArc order="8" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AssetsAbstract_800f7b65-38af-46ac-8784-102907612827" xlink:to="loc_us-gaap_IntangibleAssetsNetExcludingGoodwill_88a93de6-8f0a-4523-a96a-60fc4cd9a2c8" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredIncomeTaxAssetsNet_1c27aa4d-3cef-44ef-a194-bafb57137232" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DeferredIncomeTaxAssetsNet"/>
    <link:presentationArc order="9" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AssetsAbstract_800f7b65-38af-46ac-8784-102907612827" xlink:to="loc_us-gaap_DeferredIncomeTaxAssetsNet_1c27aa4d-3cef-44ef-a194-bafb57137232" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DefinedBenefitPlanAssetsForPlanBenefitsNoncurrent_5a8546e0-86a6-44b8-aca1-79ca893be042" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DefinedBenefitPlanAssetsForPlanBenefitsNoncurrent"/>
    <link:presentationArc order="10" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AssetsAbstract_800f7b65-38af-46ac-8784-102907612827" xlink:to="loc_us-gaap_DefinedBenefitPlanAssetsForPlanBenefitsNoncurrent_5a8546e0-86a6-44b8-aca1-79ca893be042" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherAssetsNoncurrent_5bebdab4-19bc-4dcb-b507-3f83e01cf95a" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_OtherAssetsNoncurrent"/>
    <link:presentationArc order="11" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AssetsAbstract_800f7b65-38af-46ac-8784-102907612827" xlink:to="loc_us-gaap_OtherAssetsNoncurrent_5bebdab4-19bc-4dcb-b507-3f83e01cf95a" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Assets_3c5f8e72-dfd7-49ca-b139-76ab334f3ef7" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_Assets"/>
    <link:presentationArc order="12" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AssetsAbstract_800f7b65-38af-46ac-8784-102907612827" xlink:to="loc_us-gaap_Assets_3c5f8e72-dfd7-49ca-b139-76ab334f3ef7" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/totalLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LiabilitiesAndStockholdersEquityAbstract_1a4e026e-d583-4d5d-9228-aec772bb9995" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LiabilitiesAndStockholdersEquityAbstract"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_BalanceSheetRelatedDisclosuresAbstract_56a2e499-0481-432e-84ac-19c664e76b86" xlink:to="loc_us-gaap_LiabilitiesAndStockholdersEquityAbstract_1a4e026e-d583-4d5d-9228-aec772bb9995" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LiabilitiesCurrentAbstract_1bf5de39-c05a-496f-89f5-10685695943a" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LiabilitiesCurrentAbstract"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquityAbstract_1a4e026e-d583-4d5d-9228-aec772bb9995" xlink:to="loc_us-gaap_LiabilitiesCurrentAbstract_1bf5de39-c05a-496f-89f5-10685695943a" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtCurrent_c8592db4-bf2d-4b4e-99be-080e6d3732db" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DebtCurrent"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LiabilitiesCurrentAbstract_1bf5de39-c05a-496f-89f5-10685695943a" xlink:to="loc_us-gaap_DebtCurrent_c8592db4-bf2d-4b4e-99be-080e6d3732db" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccountsPayableCurrent_86761841-2851-4bc3-92a8-c7d13bb69e11" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_AccountsPayableCurrent"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LiabilitiesCurrentAbstract_1bf5de39-c05a-496f-89f5-10685695943a" xlink:to="loc_us-gaap_AccountsPayableCurrent_86761841-2851-4bc3-92a8-c7d13bb69e11" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PensionAndOtherPostretirementDefinedBenefitPlansCurrentLiabilities_5ebbd6bb-9128-425e-bcdd-bfdc8d29f512" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_PensionAndOtherPostretirementDefinedBenefitPlansCurrentLiabilities"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LiabilitiesCurrentAbstract_1bf5de39-c05a-496f-89f5-10685695943a" xlink:to="loc_us-gaap_PensionAndOtherPostretirementDefinedBenefitPlansCurrentLiabilities_5ebbd6bb-9128-425e-bcdd-bfdc8d29f512" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EmployeeRelatedLiabilitiesCurrent_f46c2da1-3a14-4ccf-9221-e23054f74f73" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_EmployeeRelatedLiabilitiesCurrent"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LiabilitiesCurrentAbstract_1bf5de39-c05a-496f-89f5-10685695943a" xlink:to="loc_us-gaap_EmployeeRelatedLiabilitiesCurrent_f46c2da1-3a14-4ccf-9221-e23054f74f73" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccruedIncomeTaxesCurrent_fcb2cf4f-79cf-4f18-8c8e-09b1146a38a7" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_AccruedIncomeTaxesCurrent"/>
    <link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LiabilitiesCurrentAbstract_1bf5de39-c05a-496f-89f5-10685695943a" xlink:to="loc_us-gaap_AccruedIncomeTaxesCurrent_fcb2cf4f-79cf-4f18-8c8e-09b1146a38a7" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingLeaseLiabilityCurrent_5071236a-c691-4589-89f5-e1719d228be9" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_OperatingLeaseLiabilityCurrent"/>
    <link:presentationArc order="6" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LiabilitiesCurrentAbstract_1bf5de39-c05a-496f-89f5-10685695943a" xlink:to="loc_us-gaap_OperatingLeaseLiabilityCurrent_5071236a-c691-4589-89f5-e1719d228be9" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherLiabilitiesCurrent_20631aed-fb8b-44c4-afa4-2e60ef23315c" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_OtherLiabilitiesCurrent"/>
    <link:presentationArc order="7" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LiabilitiesCurrentAbstract_1bf5de39-c05a-496f-89f5-10685695943a" xlink:to="loc_us-gaap_OtherLiabilitiesCurrent_20631aed-fb8b-44c4-afa4-2e60ef23315c" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LiabilitiesCurrent_a4e13037-ba9c-4d31-8d4b-fb95ab6a383f" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LiabilitiesCurrent"/>
    <link:presentationArc order="8" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LiabilitiesCurrentAbstract_1bf5de39-c05a-496f-89f5-10685695943a" xlink:to="loc_us-gaap_LiabilitiesCurrent_a4e13037-ba9c-4d31-8d4b-fb95ab6a383f" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/totalLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermDebtNoncurrent_95e0c130-4689-4fcd-bb1a-0a0d43aef49c" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LongTermDebtNoncurrent"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquityAbstract_1a4e026e-d583-4d5d-9228-aec772bb9995" xlink:to="loc_us-gaap_LongTermDebtNoncurrent_95e0c130-4689-4fcd-bb1a-0a0d43aef49c" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredIncomeTaxLiabilitiesNet_904b6923-8b6f-48c7-84e0-087380327752" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DeferredIncomeTaxLiabilitiesNet"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquityAbstract_1a4e026e-d583-4d5d-9228-aec772bb9995" xlink:to="loc_us-gaap_DeferredIncomeTaxLiabilitiesNet_904b6923-8b6f-48c7-84e0-087380327752" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent_24f214c0-b2b1-4346-81ba-5362f3ff98c4" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquityAbstract_1a4e026e-d583-4d5d-9228-aec772bb9995" xlink:to="loc_us-gaap_PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent_24f214c0-b2b1-4346-81ba-5362f3ff98c4" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingLeaseLiabilityNoncurrent_5db3deed-4ee1-417d-b555-3b44e428c7d1" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_OperatingLeaseLiabilityNoncurrent"/>
    <link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquityAbstract_1a4e026e-d583-4d5d-9228-aec772bb9995" xlink:to="loc_us-gaap_OperatingLeaseLiabilityNoncurrent_5db3deed-4ee1-417d-b555-3b44e428c7d1" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherLiabilitiesNoncurrent_327b7631-7c17-473a-af81-123c60ba8d40" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_OtherLiabilitiesNoncurrent"/>
    <link:presentationArc order="6" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquityAbstract_1a4e026e-d583-4d5d-9228-aec772bb9995" xlink:to="loc_us-gaap_OtherLiabilitiesNoncurrent_327b7631-7c17-473a-af81-123c60ba8d40" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Liabilities_d184391a-f18c-4299-b25b-0b6d9e888b60" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_Liabilities"/>
    <link:presentationArc order="7" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquityAbstract_1a4e026e-d583-4d5d-9228-aec772bb9995" xlink:to="loc_us-gaap_Liabilities_d184391a-f18c-4299-b25b-0b6d9e888b60" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/totalLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommitmentsAndContingencies_0e31dd3a-16c2-4121-90cc-1626a69f842a" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_CommitmentsAndContingencies"/>
    <link:presentationArc order="8" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquityAbstract_1a4e026e-d583-4d5d-9228-aec772bb9995" xlink:to="loc_us-gaap_CommitmentsAndContingencies_0e31dd3a-16c2-4121-90cc-1626a69f842a" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquityAbstract_6f4f6ee2-445e-4e35-8088-21908837b179" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_EquityAbstract"/>
    <link:presentationArc order="9" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquityAbstract_1a4e026e-d583-4d5d-9228-aec772bb9995" xlink:to="loc_us-gaap_EquityAbstract_6f4f6ee2-445e-4e35-8088-21908837b179" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PreferredStockValue_e8856114-d073-4f2f-8469-c4c69a17cdc9" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_PreferredStockValue"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EquityAbstract_6f4f6ee2-445e-4e35-8088-21908837b179" xlink:to="loc_us-gaap_PreferredStockValue_e8856114-d073-4f2f-8469-c4c69a17cdc9" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockValue_5bd37ad4-9d31-4d89-8350-c6de0c4ce154" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_CommonStockValue"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EquityAbstract_6f4f6ee2-445e-4e35-8088-21908837b179" xlink:to="loc_us-gaap_CommonStockValue_5bd37ad4-9d31-4d89-8350-c6de0c4ce154" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AdditionalPaidInCapital_c1675213-24fb-4ac4-9cc9-25c8544dc360" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_AdditionalPaidInCapital"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EquityAbstract_6f4f6ee2-445e-4e35-8088-21908837b179" xlink:to="loc_us-gaap_AdditionalPaidInCapital_c1675213-24fb-4ac4-9cc9-25c8544dc360" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RetainedEarningsAccumulatedDeficit_84887ed5-3384-4d11-8ae3-b0854de36e79" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_RetainedEarningsAccumulatedDeficit"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EquityAbstract_6f4f6ee2-445e-4e35-8088-21908837b179" xlink:to="loc_us-gaap_RetainedEarningsAccumulatedDeficit_84887ed5-3384-4d11-8ae3-b0854de36e79" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax_b04c4462-2edc-4237-8bc5-abe4d946e60f" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax"/>
    <link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EquityAbstract_6f4f6ee2-445e-4e35-8088-21908837b179" xlink:to="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax_b04c4462-2edc-4237-8bc5-abe4d946e60f" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TreasuryStockValue_62df45db-342e-408a-8343-f7eab23ba274" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_TreasuryStockValue"/>
    <link:presentationArc order="6" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EquityAbstract_6f4f6ee2-445e-4e35-8088-21908837b179" xlink:to="loc_us-gaap_TreasuryStockValue_62df45db-342e-408a-8343-f7eab23ba274" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest_21df14b6-62a0-44a9-8045-85a9feaae9f3" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest"/>
    <link:presentationArc order="7" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EquityAbstract_6f4f6ee2-445e-4e35-8088-21908837b179" xlink:to="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest_21df14b6-62a0-44a9-8045-85a9feaae9f3" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/totalLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LiabilitiesAndStockholdersEquity_1ec4eb45-8b18-4cd4-b9f6-def07b6153f6" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LiabilitiesAndStockholdersEquity"/>
    <link:presentationArc order="10" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquityAbstract_1a4e026e-d583-4d5d-9228-aec772bb9995" xlink:to="loc_us-gaap_LiabilitiesAndStockholdersEquity_1ec4eb45-8b18-4cd4-b9f6-def07b6153f6" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/totalLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.westpharma.com/role/CONDENSEDCONSOLIDATEDBALANCESHEETSUNAUDITEDParenthetical" xlink:type="simple" xlink:href="wst-20200331.xsd#CONDENSEDCONSOLIDATEDBALANCESHEETSUNAUDITEDParenthetical"/>
  <link:presentationLink xlink:role="http://www.westpharma.com/role/CONDENSEDCONSOLIDATEDBALANCESHEETSUNAUDITEDParenthetical" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BalanceSheetRelatedDisclosuresAbstract_54d70ba7-24b8-4ad6-ac4f-f992ae802e82" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_BalanceSheetRelatedDisclosuresAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PreferredStockSharesAuthorized_467a173a-67a2-4b59-ac1b-c2eeb7f0320a" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_PreferredStockSharesAuthorized"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_BalanceSheetRelatedDisclosuresAbstract_54d70ba7-24b8-4ad6-ac4f-f992ae802e82" xlink:to="loc_us-gaap_PreferredStockSharesAuthorized_467a173a-67a2-4b59-ac1b-c2eeb7f0320a" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PreferredStockSharesIssued_ed0932da-a849-462d-96e6-75a99abe1642" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_PreferredStockSharesIssued"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_BalanceSheetRelatedDisclosuresAbstract_54d70ba7-24b8-4ad6-ac4f-f992ae802e82" xlink:to="loc_us-gaap_PreferredStockSharesIssued_ed0932da-a849-462d-96e6-75a99abe1642" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PreferredStockSharesOutstanding_4dee61d2-542b-41be-b2a8-531b6456cb96" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_PreferredStockSharesOutstanding"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_BalanceSheetRelatedDisclosuresAbstract_54d70ba7-24b8-4ad6-ac4f-f992ae802e82" xlink:to="loc_us-gaap_PreferredStockSharesOutstanding_4dee61d2-542b-41be-b2a8-531b6456cb96" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockParOrStatedValuePerShare_b4754fd5-9a3c-42f6-b603-535914efcec4" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_CommonStockParOrStatedValuePerShare"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_BalanceSheetRelatedDisclosuresAbstract_54d70ba7-24b8-4ad6-ac4f-f992ae802e82" xlink:to="loc_us-gaap_CommonStockParOrStatedValuePerShare_b4754fd5-9a3c-42f6-b603-535914efcec4" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockSharesAuthorized_8a51c15f-df22-4652-a89f-6760b547ac21" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_CommonStockSharesAuthorized"/>
    <link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_BalanceSheetRelatedDisclosuresAbstract_54d70ba7-24b8-4ad6-ac4f-f992ae802e82" xlink:to="loc_us-gaap_CommonStockSharesAuthorized_8a51c15f-df22-4652-a89f-6760b547ac21" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockSharesIssued_bfade86f-5848-4278-a062-8c913167766d" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_CommonStockSharesIssued"/>
    <link:presentationArc order="6" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_BalanceSheetRelatedDisclosuresAbstract_54d70ba7-24b8-4ad6-ac4f-f992ae802e82" xlink:to="loc_us-gaap_CommonStockSharesIssued_bfade86f-5848-4278-a062-8c913167766d" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockSharesOutstanding_93a29284-40dd-43f1-a627-37957a87a1b4" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_CommonStockSharesOutstanding"/>
    <link:presentationArc order="7" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_BalanceSheetRelatedDisclosuresAbstract_54d70ba7-24b8-4ad6-ac4f-f992ae802e82" xlink:to="loc_us-gaap_CommonStockSharesOutstanding_93a29284-40dd-43f1-a627-37957a87a1b4" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TreasuryStockShares_893857ba-628a-4cb1-bd99-e26f87b646b5" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_TreasuryStockShares"/>
    <link:presentationArc order="8" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_BalanceSheetRelatedDisclosuresAbstract_54d70ba7-24b8-4ad6-ac4f-f992ae802e82" xlink:to="loc_us-gaap_TreasuryStockShares_893857ba-628a-4cb1-bd99-e26f87b646b5" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.westpharma.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFCASHFLOWSUNAUDITED" xlink:type="simple" xlink:href="wst-20200331.xsd#CONDENSEDCONSOLIDATEDSTATEMENTSOFCASHFLOWSUNAUDITED"/>
  <link:presentationLink xlink:role="http://www.westpharma.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFCASHFLOWSUNAUDITED" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementOfCashFlowsAbstract_c01c9cd9-82ed-4239-9375-ee1f323c8530" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_StatementOfCashFlowsAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementTable_5e3d1b73-dc59-408d-978d-d12b66649b74" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_StatementTable"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementOfCashFlowsAbstract_c01c9cd9-82ed-4239-9375-ee1f323c8530" xlink:to="loc_us-gaap_StatementTable_5e3d1b73-dc59-408d-978d-d12b66649b74" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_StatementScenarioAxis_552a18a7-c2e7-465f-b542-306d253449cb" xlink:href="http://xbrl.fasb.org/srt/2019/elts/srt-2019-01-31.xsd#srt_StatementScenarioAxis"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementTable_5e3d1b73-dc59-408d-978d-d12b66649b74" xlink:to="loc_srt_StatementScenarioAxis_552a18a7-c2e7-465f-b542-306d253449cb" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ScenarioUnspecifiedDomain_d70d4af6-b186-46bc-883a-0ff0a817798a" xlink:href="http://xbrl.fasb.org/srt/2019/elts/srt-2019-01-31.xsd#srt_ScenarioUnspecifiedDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_srt_StatementScenarioAxis_552a18a7-c2e7-465f-b542-306d253449cb" xlink:to="loc_srt_ScenarioUnspecifiedDomain_d70d4af6-b186-46bc-883a-0ff0a817798a" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementLineItems_beac3dfb-56bc-4574-93e5-4dbcca389528" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_StatementLineItems"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementTable_5e3d1b73-dc59-408d-978d-d12b66649b74" xlink:to="loc_us-gaap_StatementLineItems_beac3dfb-56bc-4574-93e5-4dbcca389528" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract_bd443c50-97a0-4d34-a18f-56f12f8e9fa6" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementOfCashFlowsAbstract_c01c9cd9-82ed-4239-9375-ee1f323c8530" xlink:to="loc_us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract_bd443c50-97a0-4d34-a18f-56f12f8e9fa6" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProfitLoss_bc6c98e4-ad65-4546-ada3-7d360a250c25" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ProfitLoss"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract_bd443c50-97a0-4d34-a18f-56f12f8e9fa6" xlink:to="loc_us-gaap_ProfitLoss_bc6c98e4-ad65-4546-ada3-7d360a250c25" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_9698cb98-d9f5-4a28-8fd8-09c6d22bf971" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract_bd443c50-97a0-4d34-a18f-56f12f8e9fa6" xlink:to="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_9698cb98-d9f5-4a28-8fd8-09c6d22bf971" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Depreciation_3b30bf58-cd9b-49e8-9378-b6952ae9a707" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_Depreciation"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_9698cb98-d9f5-4a28-8fd8-09c6d22bf971" xlink:to="loc_us-gaap_Depreciation_3b30bf58-cd9b-49e8-9378-b6952ae9a707" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AdjustmentForAmortization_678d95de-7a39-4b7b-aa75-1f74b406907e" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_AdjustmentForAmortization"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_9698cb98-d9f5-4a28-8fd8-09c6d22bf971" xlink:to="loc_us-gaap_AdjustmentForAmortization_678d95de-7a39-4b7b-aa75-1f74b406907e" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensation_a3296fb3-94e0-4a12-9e87-7d2ecc25f1f3" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ShareBasedCompensation"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_9698cb98-d9f5-4a28-8fd8-09c6d22bf971" xlink:to="loc_us-gaap_ShareBasedCompensation_a3296fb3-94e0-4a12-9e87-7d2ecc25f1f3" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestructuringReserveSettledWithoutCash2_4918c841-e103-453b-88a5-777202d4bef6" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_RestructuringReserveSettledWithoutCash2"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_9698cb98-d9f5-4a28-8fd8-09c6d22bf971" xlink:to="loc_us-gaap_RestructuringReserveSettledWithoutCash2_4918c841-e103-453b-88a5-777202d4bef6" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_wst_Pensionsettlementcharge_2f5866c3-5f47-418f-8ad1-f1be3b38d598" xlink:href="wst-20200331.xsd#wst_Pensionsettlementcharge"/>
    <link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_9698cb98-d9f5-4a28-8fd8-09c6d22bf971" xlink:to="loc_wst_Pensionsettlementcharge_2f5866c3-5f47-418f-8ad1-f1be3b38d598" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentForContingentConsiderationLiabilityOperatingActivities_08516710-2c0c-4245-8bd8-3517e1f26039" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_PaymentForContingentConsiderationLiabilityOperatingActivities"/>
    <link:presentationArc order="6" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_9698cb98-d9f5-4a28-8fd8-09c6d22bf971" xlink:to="loc_us-gaap_PaymentForContingentConsiderationLiabilityOperatingActivities_08516710-2c0c-4245-8bd8-3517e1f26039" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInOtherOperatingCapitalNet_a59ec619-3268-4bfa-88ad-aede71c38053" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_IncreaseDecreaseInOtherOperatingCapitalNet"/>
    <link:presentationArc order="7" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_9698cb98-d9f5-4a28-8fd8-09c6d22bf971" xlink:to="loc_us-gaap_IncreaseDecreaseInOtherOperatingCapitalNet_a59ec619-3268-4bfa-88ad-aede71c38053" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherNoncashIncomeExpense_2b409ac8-3350-4ebc-8ba7-bc67e1308246" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_OtherNoncashIncomeExpense"/>
    <link:presentationArc order="8" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_9698cb98-d9f5-4a28-8fd8-09c6d22bf971" xlink:to="loc_us-gaap_OtherNoncashIncomeExpense_2b409ac8-3350-4ebc-8ba7-bc67e1308246" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_041e9e01-6213-43a2-ade1-07e90f8a28a0" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_NetCashProvidedByUsedInOperatingActivities"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract_bd443c50-97a0-4d34-a18f-56f12f8e9fa6" xlink:to="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_041e9e01-6213-43a2-ade1-07e90f8a28a0" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/totalLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract_8db612b2-3267-4a07-bcaa-79565e54d71d" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementOfCashFlowsAbstract_c01c9cd9-82ed-4239-9375-ee1f323c8530" xlink:to="loc_us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract_8db612b2-3267-4a07-bcaa-79565e54d71d" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsToAcquirePropertyPlantAndEquipment_2bbf0c66-8233-4961-ae78-f8c79cf9061d" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_PaymentsToAcquirePropertyPlantAndEquipment"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract_8db612b2-3267-4a07-bcaa-79565e54d71d" xlink:to="loc_us-gaap_PaymentsToAcquirePropertyPlantAndEquipment_2bbf0c66-8233-4961-ae78-f8c79cf9061d" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsToAcquireBusinessesGross_19bae4a8-127f-40bb-a03a-3a21288bb10d" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_PaymentsToAcquireBusinessesGross"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract_8db612b2-3267-4a07-bcaa-79565e54d71d" xlink:to="loc_us-gaap_PaymentsToAcquireBusinessesGross_19bae4a8-127f-40bb-a03a-3a21288bb10d" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsForProceedsFromOtherInvestingActivities_5f80dc0e-a795-434e-90cb-00a3c01e5462" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_PaymentsForProceedsFromOtherInvestingActivities"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract_8db612b2-3267-4a07-bcaa-79565e54d71d" xlink:to="loc_us-gaap_PaymentsForProceedsFromOtherInvestingActivities_5f80dc0e-a795-434e-90cb-00a3c01e5462" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_d0516e5d-593a-42d8-ac4d-032617d8a8f6" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_NetCashProvidedByUsedInInvestingActivities"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract_8db612b2-3267-4a07-bcaa-79565e54d71d" xlink:to="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_d0516e5d-593a-42d8-ac4d-032617d8a8f6" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/totalLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract_0f178392-97bb-41b8-95ea-82abffd36c15" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementOfCashFlowsAbstract_c01c9cd9-82ed-4239-9375-ee1f323c8530" xlink:to="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract_0f178392-97bb-41b8-95ea-82abffd36c15" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromLongTermLinesOfCredit_02c6756b-dd5f-4adb-926d-7fa9974a4801" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ProceedsFromLongTermLinesOfCredit"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract_0f178392-97bb-41b8-95ea-82abffd36c15" xlink:to="loc_us-gaap_ProceedsFromLongTermLinesOfCredit_02c6756b-dd5f-4adb-926d-7fa9974a4801" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RepaymentsOfLongTermLinesOfCredit_3cc40bfe-8c94-469b-aef9-525e25fdcfd3" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_RepaymentsOfLongTermLinesOfCredit"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract_0f178392-97bb-41b8-95ea-82abffd36c15" xlink:to="loc_us-gaap_RepaymentsOfLongTermLinesOfCredit_3cc40bfe-8c94-469b-aef9-525e25fdcfd3" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RepaymentsOfLongTermDebt_77acbb2a-5892-4cd0-a3c6-d1a0190e4160" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_RepaymentsOfLongTermDebt"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract_0f178392-97bb-41b8-95ea-82abffd36c15" xlink:to="loc_us-gaap_RepaymentsOfLongTermDebt_77acbb2a-5892-4cd0-a3c6-d1a0190e4160" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RepaymentsOfLongTermDebtAndCapitalSecurities_dafea017-c8b7-441e-b648-dd4330252dd9" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_RepaymentsOfLongTermDebtAndCapitalSecurities"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract_0f178392-97bb-41b8-95ea-82abffd36c15" xlink:to="loc_us-gaap_RepaymentsOfLongTermDebtAndCapitalSecurities_dafea017-c8b7-441e-b648-dd4330252dd9" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsOfDebtIssuanceCosts_e9fad9b6-1c2f-40c6-b886-69238b50648d" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_PaymentsOfDebtIssuanceCosts"/>
    <link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract_0f178392-97bb-41b8-95ea-82abffd36c15" xlink:to="loc_us-gaap_PaymentsOfDebtIssuanceCosts_e9fad9b6-1c2f-40c6-b886-69238b50648d" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsOfDividendsCommonStock_f772d176-5793-48f3-ad69-d96f5e0686a4" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_PaymentsOfDividendsCommonStock"/>
    <link:presentationArc order="6" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract_0f178392-97bb-41b8-95ea-82abffd36c15" xlink:to="loc_us-gaap_PaymentsOfDividendsCommonStock_f772d176-5793-48f3-ad69-d96f5e0686a4" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromStockOptionsExercised_869abe87-a0f2-47e3-9263-34f9e8ee2d18" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ProceedsFromStockOptionsExercised"/>
    <link:presentationArc order="7" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract_0f178392-97bb-41b8-95ea-82abffd36c15" xlink:to="loc_us-gaap_ProceedsFromStockOptionsExercised_869abe87-a0f2-47e3-9263-34f9e8ee2d18" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromIssuanceOfSharesUnderIncentiveAndShareBasedCompensationPlans_a2539510-7971-4012-86fa-e143d59e66cb" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ProceedsFromIssuanceOfSharesUnderIncentiveAndShareBasedCompensationPlans"/>
    <link:presentationArc order="8" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract_0f178392-97bb-41b8-95ea-82abffd36c15" xlink:to="loc_us-gaap_ProceedsFromIssuanceOfSharesUnderIncentiveAndShareBasedCompensationPlans_a2539510-7971-4012-86fa-e143d59e66cb" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsForRepurchaseOfCommonStock_0828bdf0-8fbe-491b-8c32-f5e2bea6c640" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_PaymentsForRepurchaseOfCommonStock"/>
    <link:presentationArc order="9" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract_0f178392-97bb-41b8-95ea-82abffd36c15" xlink:to="loc_us-gaap_PaymentsForRepurchaseOfCommonStock_0828bdf0-8fbe-491b-8c32-f5e2bea6c640" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsRelatedToTaxWithholdingForShareBasedCompensation_fa6046f3-ebf7-4a61-82f9-f6c4158aa28d" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_PaymentsRelatedToTaxWithholdingForShareBasedCompensation"/>
    <link:presentationArc order="10" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract_0f178392-97bb-41b8-95ea-82abffd36c15" xlink:to="loc_us-gaap_PaymentsRelatedToTaxWithholdingForShareBasedCompensation_fa6046f3-ebf7-4a61-82f9-f6c4158aa28d" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_61c60b32-cc24-4d0b-ab98-1c81364094dd" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_NetCashProvidedByUsedInFinancingActivities"/>
    <link:presentationArc order="11" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract_0f178392-97bb-41b8-95ea-82abffd36c15" xlink:to="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_61c60b32-cc24-4d0b-ab98-1c81364094dd" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/totalLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EffectOfExchangeRateOnCashAndCashEquivalents_e9bd3465-0e96-4e5d-9e59-18f0057f920b" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_EffectOfExchangeRateOnCashAndCashEquivalents"/>
    <link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementOfCashFlowsAbstract_c01c9cd9-82ed-4239-9375-ee1f323c8530" xlink:to="loc_us-gaap_EffectOfExchangeRateOnCashAndCashEquivalents_e9bd3465-0e96-4e5d-9e59-18f0057f920b" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect_df5dc1d9-51d3-4cee-904d-c62800c8400c" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect"/>
    <link:presentationArc order="6" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementOfCashFlowsAbstract_c01c9cd9-82ed-4239-9375-ee1f323c8530" xlink:to="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect_df5dc1d9-51d3-4cee-904d-c62800c8400c" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashAndCashEquivalentsAtCarryingValue_9973d8a0-93be-4829-bd2e-1493f4483684" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_CashAndCashEquivalentsAtCarryingValue"/>
    <link:presentationArc order="7" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementOfCashFlowsAbstract_c01c9cd9-82ed-4239-9375-ee1f323c8530" xlink:to="loc_us-gaap_CashAndCashEquivalentsAtCarryingValue_9973d8a0-93be-4829-bd2e-1493f4483684" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/periodStartLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashAndCashEquivalentsAtCarryingValue_9a12e3bf-f34a-4f83-baae-2038598cb3a6" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_CashAndCashEquivalentsAtCarryingValue"/>
    <link:presentationArc order="8" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementOfCashFlowsAbstract_c01c9cd9-82ed-4239-9375-ee1f323c8530" xlink:to="loc_us-gaap_CashAndCashEquivalentsAtCarryingValue_9a12e3bf-f34a-4f83-baae-2038598cb3a6" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/periodEndLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.westpharma.com/role/SummaryofSignificantAccountingPolicies" xlink:type="simple" xlink:href="wst-20200331.xsd#SummaryofSignificantAccountingPolicies"/>
  <link:presentationLink xlink:role="http://www.westpharma.com/role/SummaryofSignificantAccountingPolicies" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccountingPoliciesAbstract_77dc7a21-7a58-40bd-b88d-27844505d20d" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_AccountingPoliciesAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SignificantAccountingPoliciesTextBlock_d9d59dc8-2044-431d-bfa1-f8e6c3d20ae8" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_SignificantAccountingPoliciesTextBlock"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AccountingPoliciesAbstract_77dc7a21-7a58-40bd-b88d-27844505d20d" xlink:to="loc_us-gaap_SignificantAccountingPoliciesTextBlock_d9d59dc8-2044-431d-bfa1-f8e6c3d20ae8" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.westpharma.com/role/SummaryofSignificantAccountingPoliciesPolicies" xlink:type="simple" xlink:href="wst-20200331.xsd#SummaryofSignificantAccountingPoliciesPolicies"/>
  <link:presentationLink xlink:role="http://www.westpharma.com/role/SummaryofSignificantAccountingPoliciesPolicies" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccountingPoliciesAbstract_b3c9c976-911c-4d61-b048-fcada6dd4bb7" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_AccountingPoliciesAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BasisOfAccountingPolicyPolicyTextBlock_77f3e802-b494-4960-9f90-d1cfda8bbec6" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_BasisOfAccountingPolicyPolicyTextBlock"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AccountingPoliciesAbstract_b3c9c976-911c-4d61-b048-fcada6dd4bb7" xlink:to="loc_us-gaap_BasisOfAccountingPolicyPolicyTextBlock_77f3e802-b494-4960-9f90-d1cfda8bbec6" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NewAccountingPronouncementsPolicyPolicyTextBlock_02438093-e22a-4d1f-8966-344bd4db450c" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_NewAccountingPronouncementsPolicyPolicyTextBlock"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AccountingPoliciesAbstract_b3c9c976-911c-4d61-b048-fcada6dd4bb7" xlink:to="loc_us-gaap_NewAccountingPronouncementsPolicyPolicyTextBlock_02438093-e22a-4d1f-8966-344bd4db450c" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.westpharma.com/role/SummaryofSignificantAccountingPoliciesBusinessCombinationsDetails" xlink:type="simple" xlink:href="wst-20200331.xsd#SummaryofSignificantAccountingPoliciesBusinessCombinationsDetails"/>
  <link:presentationLink xlink:role="http://www.westpharma.com/role/SummaryofSignificantAccountingPoliciesBusinessCombinationsDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessCombinationsAbstract_1662f1f4-6049-40ed-b455-05f5bd9d7956" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_BusinessCombinationsAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessAcquisitionCostOfAcquiredEntityTransactionCosts_4ca9ef5f-21c3-4de8-8195-25baefe6db9b" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_BusinessAcquisitionCostOfAcquiredEntityTransactionCosts"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_BusinessCombinationsAbstract_1662f1f4-6049-40ed-b455-05f5bd9d7956" xlink:to="loc_us-gaap_BusinessAcquisitionCostOfAcquiredEntityTransactionCosts_4ca9ef5f-21c3-4de8-8195-25baefe6db9b" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedInventory_62424f19-f484-41d9-a1d3-b046339cb4a2" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedInventory"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_BusinessCombinationsAbstract_1662f1f4-6049-40ed-b455-05f5bd9d7956" xlink:to="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedInventory_62424f19-f484-41d9-a1d3-b046339cb4a2" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedPropertyPlantAndEquipment_229d28cb-9a0b-4f3b-930a-b978adc10cd5" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedPropertyPlantAndEquipment"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_BusinessCombinationsAbstract_1662f1f4-6049-40ed-b455-05f5bd9d7956" xlink:to="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedPropertyPlantAndEquipment_229d28cb-9a0b-4f3b-930a-b978adc10cd5" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredGoodwillAndLiabilitiesAssumedNet_3201a17f-b122-4ab8-b3ae-30018555024e" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredGoodwillAndLiabilitiesAssumedNet"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_BusinessCombinationsAbstract_1662f1f4-6049-40ed-b455-05f5bd9d7956" xlink:to="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredGoodwillAndLiabilitiesAssumedNet_3201a17f-b122-4ab8-b3ae-30018555024e" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibles_01539c3e-850d-43f3-b395-2c39ce4068c1" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibles"/>
    <link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_BusinessCombinationsAbstract_1662f1f4-6049-40ed-b455-05f5bd9d7956" xlink:to="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibles_01539c3e-850d-43f3-b395-2c39ce4068c1" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.westpharma.com/role/NewAccountingStandards" xlink:type="simple" xlink:href="wst-20200331.xsd#NewAccountingStandards"/>
  <link:presentationLink xlink:role="http://www.westpharma.com/role/NewAccountingStandards" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NewAccountingPronouncementsAndChangesInAccountingPrinciplesAbstract_818514ba-2a4f-4e67-a42d-a5f767c94fd9" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_NewAccountingPronouncementsAndChangesInAccountingPrinciplesAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NewAccountingPronouncementsAndChangesInAccountingPrinciplesTextBlock_fb151919-b691-4ae7-ba00-e54eac9d5b70" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_NewAccountingPronouncementsAndChangesInAccountingPrinciplesTextBlock"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NewAccountingPronouncementsAndChangesInAccountingPrinciplesAbstract_818514ba-2a4f-4e67-a42d-a5f767c94fd9" xlink:to="loc_us-gaap_NewAccountingPronouncementsAndChangesInAccountingPrinciplesTextBlock_fb151919-b691-4ae7-ba00-e54eac9d5b70" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.westpharma.com/role/NewAccountingStandardsDetails" xlink:type="simple" xlink:href="wst-20200331.xsd#NewAccountingStandardsDetails"/>
  <link:presentationLink xlink:role="http://www.westpharma.com/role/NewAccountingStandardsDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NewAccountingPronouncementsAndChangesInAccountingPrinciplesAbstract_fa29ac98-1fe2-467d-a776-7552870c0654" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_NewAccountingPronouncementsAndChangesInAccountingPrinciplesAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NewAccountingPronouncementsOrChangeInAccountingPrincipleTable_459c3fd9-c83a-47e5-975f-90be9329f70b" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_NewAccountingPronouncementsOrChangeInAccountingPrincipleTable"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NewAccountingPronouncementsAndChangesInAccountingPrinciplesAbstract_fa29ac98-1fe2-467d-a776-7552870c0654" xlink:to="loc_us-gaap_NewAccountingPronouncementsOrChangeInAccountingPrincipleTable_459c3fd9-c83a-47e5-975f-90be9329f70b" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AdjustmentsForNewAccountingPronouncementsAxis_6e941a0d-b773-452f-b00e-4e35bbbfe253" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_AdjustmentsForNewAccountingPronouncementsAxis"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NewAccountingPronouncementsOrChangeInAccountingPrincipleTable_459c3fd9-c83a-47e5-975f-90be9329f70b" xlink:to="loc_us-gaap_AdjustmentsForNewAccountingPronouncementsAxis_6e941a0d-b773-452f-b00e-4e35bbbfe253" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TypeOfAdoptionMember_ac0574c5-47b1-4c66-b4e3-bfb1d38f2bb1" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_TypeOfAdoptionMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AdjustmentsForNewAccountingPronouncementsAxis_6e941a0d-b773-452f-b00e-4e35bbbfe253" xlink:to="loc_us-gaap_TypeOfAdoptionMember_ac0574c5-47b1-4c66-b4e3-bfb1d38f2bb1" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccountingStandardsUpdate201613Member_3a224a70-d49f-4630-8d6e-3dc3cac7ce4e" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_AccountingStandardsUpdate201613Member"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_TypeOfAdoptionMember_ac0574c5-47b1-4c66-b4e3-bfb1d38f2bb1" xlink:to="loc_us-gaap_AccountingStandardsUpdate201613Member_3a224a70-d49f-4630-8d6e-3dc3cac7ce4e" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NewAccountingPronouncementsOrChangeInAccountingPrincipleLineItems_8353da47-6005-41c7-8ef5-71c67cffb672" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_NewAccountingPronouncementsOrChangeInAccountingPrincipleLineItems"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NewAccountingPronouncementsOrChangeInAccountingPrincipleTable_459c3fd9-c83a-47e5-975f-90be9329f70b" xlink:to="loc_us-gaap_NewAccountingPronouncementsOrChangeInAccountingPrincipleLineItems_8353da47-6005-41c7-8ef5-71c67cffb672" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RetainedEarningsAccumulatedDeficit_d5d86e62-0edc-41ef-b20e-5ca0432293aa" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_RetainedEarningsAccumulatedDeficit"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NewAccountingPronouncementsOrChangeInAccountingPrincipleLineItems_8353da47-6005-41c7-8ef5-71c67cffb672" xlink:to="loc_us-gaap_RetainedEarningsAccumulatedDeficit_d5d86e62-0edc-41ef-b20e-5ca0432293aa" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.westpharma.com/role/Revenue" xlink:type="simple" xlink:href="wst-20200331.xsd#Revenue"/>
  <link:presentationLink xlink:role="http://www.westpharma.com/role/Revenue" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_wst_RevenueAbstract_99a89b18-3fad-4961-8129-42427bdf4650" xlink:href="wst-20200331.xsd#wst_RevenueAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevenueFromContractWithCustomerTextBlock_4bf25a57-9703-4a56-a604-7fff39650faa" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_RevenueFromContractWithCustomerTextBlock"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_wst_RevenueAbstract_99a89b18-3fad-4961-8129-42427bdf4650" xlink:to="loc_us-gaap_RevenueFromContractWithCustomerTextBlock_4bf25a57-9703-4a56-a604-7fff39650faa" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.westpharma.com/role/RevenueTables" xlink:type="simple" xlink:href="wst-20200331.xsd#RevenueTables"/>
  <link:presentationLink xlink:role="http://www.westpharma.com/role/RevenueTables" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_wst_RevenueAbstract_ff7df200-a2a1-4fc4-a9cd-45813cb42707" xlink:href="wst-20200331.xsd#wst_RevenueAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DisaggregationOfRevenueTableTextBlock_b681a7cb-ba8b-4c7b-a40c-472cea087617" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DisaggregationOfRevenueTableTextBlock"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_wst_RevenueAbstract_ff7df200-a2a1-4fc4-a9cd-45813cb42707" xlink:to="loc_us-gaap_DisaggregationOfRevenueTableTextBlock_b681a7cb-ba8b-4c7b-a40c-472cea087617" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ContractWithCustomerAssetAndLiabilityTableTextBlock_442fca26-8ddd-48c7-9db8-7dec4ee59f69" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ContractWithCustomerAssetAndLiabilityTableTextBlock"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_wst_RevenueAbstract_ff7df200-a2a1-4fc4-a9cd-45813cb42707" xlink:to="loc_us-gaap_ContractWithCustomerAssetAndLiabilityTableTextBlock_442fca26-8ddd-48c7-9db8-7dec4ee59f69" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.westpharma.com/role/RevenueRecognitionDetails" xlink:type="simple" xlink:href="wst-20200331.xsd#RevenueRecognitionDetails"/>
  <link:presentationLink xlink:role="http://www.westpharma.com/role/RevenueRecognitionDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevenueRecognitionAndDeferredRevenueAbstract_a99a3412-2606-45a6-8f2e-d6ecfde54562" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_RevenueRecognitionAndDeferredRevenueAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DisaggregationOfRevenueTable_c0f39ccd-1b43-4479-ad4c-b731e43eeba0" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DisaggregationOfRevenueTable"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RevenueRecognitionAndDeferredRevenueAbstract_a99a3412-2606-45a6-8f2e-d6ecfde54562" xlink:to="loc_us-gaap_DisaggregationOfRevenueTable_c0f39ccd-1b43-4479-ad4c-b731e43eeba0" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NatureOfExpenseAxis_70b8c614-2441-4885-93b0-7aa3fec2472c" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_NatureOfExpenseAxis"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DisaggregationOfRevenueTable_c0f39ccd-1b43-4479-ad4c-b731e43eeba0" xlink:to="loc_us-gaap_NatureOfExpenseAxis_70b8c614-2441-4885-93b0-7aa3fec2472c" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InterimPeriodCostsNotAllocableDomain_53e69a95-063e-4352-bb23-66e1565225b5" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_InterimPeriodCostsNotAllocableDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NatureOfExpenseAxis_70b8c614-2441-4885-93b0-7aa3fec2472c" xlink:to="loc_us-gaap_InterimPeriodCostsNotAllocableDomain_53e69a95-063e-4352-bb23-66e1565225b5" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_wst_SmartDoseMember_72bbaef6-cc3e-4314-a1c1-784cec0a389d" xlink:href="wst-20200331.xsd#wst_SmartDoseMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_InterimPeriodCostsNotAllocableDomain_53e69a95-063e-4352-bb23-66e1565225b5" xlink:to="loc_wst_SmartDoseMember_72bbaef6-cc3e-4314-a1c1-784cec0a389d" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_StatementGeographicalAxis_c222eea3-d656-4bbf-8ad1-27a8535cc211" xlink:href="http://xbrl.fasb.org/srt/2019/elts/srt-2019-01-31.xsd#srt_StatementGeographicalAxis"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DisaggregationOfRevenueTable_c0f39ccd-1b43-4479-ad4c-b731e43eeba0" xlink:to="loc_srt_StatementGeographicalAxis_c222eea3-d656-4bbf-8ad1-27a8535cc211" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_SegmentGeographicalDomain_9297d013-a3b6-4d89-aebd-662be27ba7b2" xlink:href="http://xbrl.fasb.org/srt/2019/elts/srt-2019-01-31.xsd#srt_SegmentGeographicalDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_srt_StatementGeographicalAxis_c222eea3-d656-4bbf-8ad1-27a8535cc211" xlink:to="loc_srt_SegmentGeographicalDomain_9297d013-a3b6-4d89-aebd-662be27ba7b2" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_AmericasMember_8b515460-b34e-4bfb-8d79-ff8a5e076d61" xlink:href="http://xbrl.fasb.org/srt/2019/elts/srt-2019-01-31.xsd#srt_AmericasMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_srt_SegmentGeographicalDomain_9297d013-a3b6-4d89-aebd-662be27ba7b2" xlink:to="loc_srt_AmericasMember_8b515460-b34e-4bfb-8d79-ff8a5e076d61" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EMEAMember_45223582-dfe0-467f-b9f6-c57f7720d933" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_EMEAMember"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_srt_SegmentGeographicalDomain_9297d013-a3b6-4d89-aebd-662be27ba7b2" xlink:to="loc_us-gaap_EMEAMember_45223582-dfe0-467f-b9f6-c57f7720d933" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_AsiaPacificMember_ce321686-7cf5-4e41-a2ff-7ec86663b21d" xlink:href="http://xbrl.fasb.org/srt/2019/elts/srt-2019-01-31.xsd#srt_AsiaPacificMember"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_srt_SegmentGeographicalDomain_9297d013-a3b6-4d89-aebd-662be27ba7b2" xlink:to="loc_srt_AsiaPacificMember_ce321686-7cf5-4e41-a2ff-7ec86663b21d" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_MajorCustomersAxis_749cd440-ac59-400b-a9c5-401811eb5511" xlink:href="http://xbrl.fasb.org/srt/2019/elts/srt-2019-01-31.xsd#srt_MajorCustomersAxis"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DisaggregationOfRevenueTable_c0f39ccd-1b43-4479-ad4c-b731e43eeba0" xlink:to="loc_srt_MajorCustomersAxis_749cd440-ac59-400b-a9c5-401811eb5511" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_NameOfMajorCustomerDomain_83b09fe1-704b-45ca-85d7-f66f213dbe66" xlink:href="http://xbrl.fasb.org/srt/2019/elts/srt-2019-01-31.xsd#srt_NameOfMajorCustomerDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_srt_MajorCustomersAxis_749cd440-ac59-400b-a9c5-401811eb5511" xlink:to="loc_srt_NameOfMajorCustomerDomain_83b09fe1-704b-45ca-85d7-f66f213dbe66" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_wst_BiologicsCustomersMember_1eff2601-504f-47f7-b9da-457796c0a93a" xlink:href="wst-20200331.xsd#wst_BiologicsCustomersMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_srt_NameOfMajorCustomerDomain_83b09fe1-704b-45ca-85d7-f66f213dbe66" xlink:to="loc_wst_BiologicsCustomersMember_1eff2601-504f-47f7-b9da-457796c0a93a" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_wst_GenericsCustomersMember_1ba37e6f-ec35-4f6a-b6ba-37568d77873e" xlink:href="wst-20200331.xsd#wst_GenericsCustomersMember"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_srt_NameOfMajorCustomerDomain_83b09fe1-704b-45ca-85d7-f66f213dbe66" xlink:to="loc_wst_GenericsCustomersMember_1ba37e6f-ec35-4f6a-b6ba-37568d77873e" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_wst_PharmaCustomersMember_960ae256-0b49-4acc-86f8-628495cc2601" xlink:href="wst-20200331.xsd#wst_PharmaCustomersMember"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_srt_NameOfMajorCustomerDomain_83b09fe1-704b-45ca-85d7-f66f213dbe66" xlink:to="loc_wst_PharmaCustomersMember_960ae256-0b49-4acc-86f8-628495cc2601" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_wst_ContractManufacturedCustomersMember_349195a6-e330-4651-8646-d9578f7d468b" xlink:href="wst-20200331.xsd#wst_ContractManufacturedCustomersMember"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_srt_NameOfMajorCustomerDomain_83b09fe1-704b-45ca-85d7-f66f213dbe66" xlink:to="loc_wst_ContractManufacturedCustomersMember_349195a6-e330-4651-8646-d9578f7d468b" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConcentrationRiskByBenchmarkAxis_25c0ce51-90ae-4749-98ff-8339e53de3e6" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ConcentrationRiskByBenchmarkAxis"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DisaggregationOfRevenueTable_c0f39ccd-1b43-4479-ad4c-b731e43eeba0" xlink:to="loc_us-gaap_ConcentrationRiskByBenchmarkAxis_25c0ce51-90ae-4749-98ff-8339e53de3e6" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConcentrationRiskBenchmarkDomain_a139e589-dcad-48d9-ae8d-7581eb08168d" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ConcentrationRiskBenchmarkDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ConcentrationRiskByBenchmarkAxis_25c0ce51-90ae-4749-98ff-8339e53de3e6" xlink:to="loc_us-gaap_ConcentrationRiskBenchmarkDomain_a139e589-dcad-48d9-ae8d-7581eb08168d" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SalesRevenueNetMember_eba7a841-03be-4bdc-a4c1-ef1b2e5ab9a2" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_SalesRevenueNetMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ConcentrationRiskBenchmarkDomain_a139e589-dcad-48d9-ae8d-7581eb08168d" xlink:to="loc_us-gaap_SalesRevenueNetMember_eba7a841-03be-4bdc-a4c1-ef1b2e5ab9a2" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConcentrationRiskByTypeAxis_386ec02c-faa9-4401-a4b3-0d41dcf18265" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ConcentrationRiskByTypeAxis"/>
    <link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DisaggregationOfRevenueTable_c0f39ccd-1b43-4479-ad4c-b731e43eeba0" xlink:to="loc_us-gaap_ConcentrationRiskByTypeAxis_386ec02c-faa9-4401-a4b3-0d41dcf18265" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConcentrationRiskTypeDomain_bb98f203-345c-4f02-b5a3-d92350b7e7d3" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ConcentrationRiskTypeDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ConcentrationRiskByTypeAxis_386ec02c-faa9-4401-a4b3-0d41dcf18265" xlink:to="loc_us-gaap_ConcentrationRiskTypeDomain_bb98f203-345c-4f02-b5a3-d92350b7e7d3" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GeographicConcentrationRiskMember_e652e9fd-69d9-4e4c-9938-1f1e75002bd5" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_GeographicConcentrationRiskMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ConcentrationRiskTypeDomain_bb98f203-345c-4f02-b5a3-d92350b7e7d3" xlink:to="loc_us-gaap_GeographicConcentrationRiskMember_e652e9fd-69d9-4e4c-9938-1f1e75002bd5" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProductConcentrationRiskMember_1e154a45-1ec8-4bc9-aee7-94fbd1d7f2ea" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ProductConcentrationRiskMember"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ConcentrationRiskTypeDomain_bb98f203-345c-4f02-b5a3-d92350b7e7d3" xlink:to="loc_us-gaap_ProductConcentrationRiskMember_1e154a45-1ec8-4bc9-aee7-94fbd1d7f2ea" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CustomerConcentrationRiskMember_0a24e2dd-e80f-44c3-a32c-2302b5bdfd6c" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_CustomerConcentrationRiskMember"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ConcentrationRiskTypeDomain_bb98f203-345c-4f02-b5a3-d92350b7e7d3" xlink:to="loc_us-gaap_CustomerConcentrationRiskMember_0a24e2dd-e80f-44c3-a32c-2302b5bdfd6c" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ProductOrServiceAxis_961e5fab-8961-4dac-bb83-798e1824dd14" xlink:href="http://xbrl.fasb.org/srt/2019/elts/srt-2019-01-31.xsd#srt_ProductOrServiceAxis"/>
    <link:presentationArc order="6" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DisaggregationOfRevenueTable_c0f39ccd-1b43-4479-ad4c-b731e43eeba0" xlink:to="loc_srt_ProductOrServiceAxis_961e5fab-8961-4dac-bb83-798e1824dd14" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ProductsAndServicesDomain_4029fc57-d7e8-4fe9-8673-69b17d60c4b1" xlink:href="http://xbrl.fasb.org/srt/2019/elts/srt-2019-01-31.xsd#srt_ProductsAndServicesDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_srt_ProductOrServiceAxis_961e5fab-8961-4dac-bb83-798e1824dd14" xlink:to="loc_srt_ProductsAndServicesDomain_4029fc57-d7e8-4fe9-8673-69b17d60c4b1" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_wst_HighValueComponentsMember_d6a783ec-79a0-450b-adc2-131abb9ee43f" xlink:href="wst-20200331.xsd#wst_HighValueComponentsMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_srt_ProductsAndServicesDomain_4029fc57-d7e8-4fe9-8673-69b17d60c4b1" xlink:to="loc_wst_HighValueComponentsMember_d6a783ec-79a0-450b-adc2-131abb9ee43f" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_wst_StandardPackagingMember_5051b3ef-db3a-4e74-beee-e72d37c252f8" xlink:href="wst-20200331.xsd#wst_StandardPackagingMember"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_srt_ProductsAndServicesDomain_4029fc57-d7e8-4fe9-8673-69b17d60c4b1" xlink:to="loc_wst_StandardPackagingMember_5051b3ef-db3a-4e74-beee-e72d37c252f8" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_wst_DeliveryDevicesMember_b283a04a-5b2e-4eb1-b919-af965d13a06d" xlink:href="wst-20200331.xsd#wst_DeliveryDevicesMember"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_srt_ProductsAndServicesDomain_4029fc57-d7e8-4fe9-8673-69b17d60c4b1" xlink:to="loc_wst_DeliveryDevicesMember_b283a04a-5b2e-4eb1-b919-af965d13a06d" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_wst_ContractManufacturedProductsMember_6ef57ee8-3860-4d11-a8d0-525d86981bde" xlink:href="wst-20200331.xsd#wst_ContractManufacturedProductsMember"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_srt_ProductsAndServicesDomain_4029fc57-d7e8-4fe9-8673-69b17d60c4b1" xlink:to="loc_wst_ContractManufacturedProductsMember_6ef57ee8-3860-4d11-a8d0-525d86981bde" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DisaggregationOfRevenueLineItems_e98e2b82-9272-402e-a09b-95f03b7b3143" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DisaggregationOfRevenueLineItems"/>
    <link:presentationArc order="7" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DisaggregationOfRevenueTable_c0f39ccd-1b43-4479-ad4c-b731e43eeba0" xlink:to="loc_us-gaap_DisaggregationOfRevenueLineItems_e98e2b82-9272-402e-a09b-95f03b7b3143" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConcentrationRiskPercentage1_f4d94a3c-087e-4b6d-9b64-69e852ea92ab" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ConcentrationRiskPercentage1"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DisaggregationOfRevenueLineItems_e98e2b82-9272-402e-a09b-95f03b7b3143" xlink:to="loc_us-gaap_ConcentrationRiskPercentage1_f4d94a3c-087e-4b6d-9b64-69e852ea92ab" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.westpharma.com/role/ContractsandLiabilitiesDetails" xlink:type="simple" xlink:href="wst-20200331.xsd#ContractsandLiabilitiesDetails"/>
  <link:presentationLink xlink:role="http://www.westpharma.com/role/ContractsandLiabilitiesDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevenueFromContractWithCustomerAbstract_3049e229-01b0-49eb-907d-fdfcabac14a5" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_RevenueFromContractWithCustomerAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementTable_5969a8d8-e579-42c9-bfe5-da22b2ac9306" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_StatementTable"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RevenueFromContractWithCustomerAbstract_3049e229-01b0-49eb-907d-fdfcabac14a5" xlink:to="loc_us-gaap_StatementTable_5969a8d8-e579-42c9-bfe5-da22b2ac9306" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NatureOfExpenseAxis_b1a47adf-1ff1-4d64-b4bc-0772fece0374" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_NatureOfExpenseAxis"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementTable_5969a8d8-e579-42c9-bfe5-da22b2ac9306" xlink:to="loc_us-gaap_NatureOfExpenseAxis_b1a47adf-1ff1-4d64-b4bc-0772fece0374" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InterimPeriodCostsNotAllocableDomain_a8feb3ff-54a9-4f0d-9c3f-17420c447382" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_InterimPeriodCostsNotAllocableDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NatureOfExpenseAxis_b1a47adf-1ff1-4d64-b4bc-0772fece0374" xlink:to="loc_us-gaap_InterimPeriodCostsNotAllocableDomain_a8feb3ff-54a9-4f0d-9c3f-17420c447382" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_wst_SmartDoseMember_16d908a0-404b-4363-93fd-44d7f362e9b3" xlink:href="wst-20200331.xsd#wst_SmartDoseMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_InterimPeriodCostsNotAllocableDomain_a8feb3ff-54a9-4f0d-9c3f-17420c447382" xlink:to="loc_wst_SmartDoseMember_16d908a0-404b-4363-93fd-44d7f362e9b3" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ProductOrServiceAxis_699dee5d-5ebe-404c-80a9-989ba97f2ae4" xlink:href="http://xbrl.fasb.org/srt/2019/elts/srt-2019-01-31.xsd#srt_ProductOrServiceAxis"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementTable_5969a8d8-e579-42c9-bfe5-da22b2ac9306" xlink:to="loc_srt_ProductOrServiceAxis_699dee5d-5ebe-404c-80a9-989ba97f2ae4" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ProductsAndServicesDomain_19c108fa-4c87-48cb-bcef-4c0e82ebfde5" xlink:href="http://xbrl.fasb.org/srt/2019/elts/srt-2019-01-31.xsd#srt_ProductsAndServicesDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_srt_ProductOrServiceAxis_699dee5d-5ebe-404c-80a9-989ba97f2ae4" xlink:to="loc_srt_ProductsAndServicesDomain_19c108fa-4c87-48cb-bcef-4c0e82ebfde5" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_wst_SmartDoseMember_acb63ff3-4657-40f5-9851-21039541e447" xlink:href="wst-20200331.xsd#wst_SmartDoseMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_srt_ProductsAndServicesDomain_19c108fa-4c87-48cb-bcef-4c0e82ebfde5" xlink:to="loc_wst_SmartDoseMember_acb63ff3-4657-40f5-9851-21039541e447" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementLineItems_a5ca769d-403e-49e2-ad7f-2ade8b50a856" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_StatementLineItems"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementTable_5969a8d8-e579-42c9-bfe5-da22b2ac9306" xlink:to="loc_us-gaap_StatementLineItems_a5ca769d-403e-49e2-ad7f-2ade8b50a856" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ContractWithCustomerAssetNet_83a0192e-0b43-4812-84ec-55682206f7e4" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ContractWithCustomerAssetNet"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementLineItems_a5ca769d-403e-49e2-ad7f-2ade8b50a856" xlink:to="loc_us-gaap_ContractWithCustomerAssetNet_83a0192e-0b43-4812-84ec-55682206f7e4" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/periodStartLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ContractWithCustomerAssetNet_f9992fff-cb79-4e09-85a0-9fdd2db7789f" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ContractWithCustomerAssetNet"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementLineItems_a5ca769d-403e-49e2-ad7f-2ade8b50a856" xlink:to="loc_us-gaap_ContractWithCustomerAssetNet_f9992fff-cb79-4e09-85a0-9fdd2db7789f" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/periodEndLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_wst_ContractwithCustomerAssetIncreaseDecrease_f699c46b-49bb-41fc-bb92-64fd3269bbaa" xlink:href="wst-20200331.xsd#wst_ContractwithCustomerAssetIncreaseDecrease"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementLineItems_a5ca769d-403e-49e2-ad7f-2ade8b50a856" xlink:to="loc_wst_ContractwithCustomerAssetIncreaseDecrease_f699c46b-49bb-41fc-bb92-64fd3269bbaa" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ContractWithCustomerLiability_39a08481-0e19-4661-a3fb-be4525b3316e" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ContractWithCustomerLiability"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementLineItems_a5ca769d-403e-49e2-ad7f-2ade8b50a856" xlink:to="loc_us-gaap_ContractWithCustomerLiability_39a08481-0e19-4661-a3fb-be4525b3316e" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedPeriodStartLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ContractWithCustomerLiability_bd6362eb-4e3c-4f81-9447-0358b2f53b29" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ContractWithCustomerLiability"/>
    <link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementLineItems_a5ca769d-403e-49e2-ad7f-2ade8b50a856" xlink:to="loc_us-gaap_ContractWithCustomerLiability_bd6362eb-4e3c-4f81-9447-0358b2f53b29" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedPeriodEndLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ContractWithCustomerLiabilityChangeInTimeframePerformanceObligationSatisfiedRevenueRecognized_21dd7fc0-f799-4acb-a5ed-e2c17e4792c6" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ContractWithCustomerLiabilityChangeInTimeframePerformanceObligationSatisfiedRevenueRecognized"/>
    <link:presentationArc order="6" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementLineItems_a5ca769d-403e-49e2-ad7f-2ade8b50a856" xlink:to="loc_us-gaap_ContractWithCustomerLiabilityChangeInTimeframePerformanceObligationSatisfiedRevenueRecognized_21dd7fc0-f799-4acb-a5ed-e2c17e4792c6" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ContractWithCustomerLiabilityRevenueRecognized_3389ffcd-69d3-4101-8969-743af02003c1" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ContractWithCustomerLiabilityRevenueRecognized"/>
    <link:presentationArc order="7" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementLineItems_a5ca769d-403e-49e2-ad7f-2ade8b50a856" xlink:to="loc_us-gaap_ContractWithCustomerLiabilityRevenueRecognized_3389ffcd-69d3-4101-8969-743af02003c1" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ContractWithCustomerLiabilityCurrent_6e5665f1-93d2-417f-af4e-d3f589330a75" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ContractWithCustomerLiabilityCurrent"/>
    <link:presentationArc order="8" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementLineItems_a5ca769d-403e-49e2-ad7f-2ade8b50a856" xlink:to="loc_us-gaap_ContractWithCustomerLiabilityCurrent_6e5665f1-93d2-417f-af4e-d3f589330a75" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ContractWithCustomerLiabilityNoncurrent_2e60542d-7e4c-4a36-82d2-20a4e5c40170" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ContractWithCustomerLiabilityNoncurrent"/>
    <link:presentationArc order="9" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementLineItems_a5ca769d-403e-49e2-ad7f-2ade8b50a856" xlink:to="loc_us-gaap_ContractWithCustomerLiabilityNoncurrent_2e60542d-7e4c-4a36-82d2-20a4e5c40170" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.westpharma.com/role/RevenueSupplyChainFinancingDetails" xlink:type="simple" xlink:href="wst-20200331.xsd#RevenueSupplyChainFinancingDetails"/>
  <link:presentationLink xlink:role="http://www.westpharma.com/role/RevenueSupplyChainFinancingDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_wst_SupplyChainFinancingAbstract_bfb4b5a5-6124-4d04-ab6d-2ac6d5128069" xlink:href="wst-20200331.xsd#wst_SupplyChainFinancingAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TransferOfFinancialAssetsAccountedForAsSalesCashProceedsReceivedForAssetsDerecognizedAmount_20fc88c9-615d-4770-8f22-b12c492b0b76" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_TransferOfFinancialAssetsAccountedForAsSalesCashProceedsReceivedForAssetsDerecognizedAmount"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_wst_SupplyChainFinancingAbstract_bfb4b5a5-6124-4d04-ab6d-2ac6d5128069" xlink:to="loc_us-gaap_TransferOfFinancialAssetsAccountedForAsSalesCashProceedsReceivedForAssetsDerecognizedAmount_20fc88c9-615d-4770-8f22-b12c492b0b76" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.westpharma.com/role/RevenueVoluntaryRecallDetails" xlink:type="simple" xlink:href="wst-20200331.xsd#RevenueVoluntaryRecallDetails"/>
  <link:presentationLink xlink:role="http://www.westpharma.com/role/RevenueVoluntaryRecallDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_wst_VoluntaryRecallAbstract_1fe74c68-2c18-4f4d-b89a-9d44142141bd" xlink:href="wst-20200331.xsd#wst_VoluntaryRecallAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevenueRecognitionSalesReturnsReserveForSalesReturns_d508fb7f-bc47-40fa-b4dc-d7c6d10bb137" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_RevenueRecognitionSalesReturnsReserveForSalesReturns"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_wst_VoluntaryRecallAbstract_1fe74c68-2c18-4f4d-b89a-9d44142141bd" xlink:to="loc_us-gaap_RevenueRecognitionSalesReturnsReserveForSalesReturns_d508fb7f-bc47-40fa-b4dc-d7c6d10bb137" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_wst_ProvisionForProductReturns_32793ba6-4ab0-4d24-987e-0a709f6ed206" xlink:href="wst-20200331.xsd#wst_ProvisionForProductReturns"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_wst_VoluntaryRecallAbstract_1fe74c68-2c18-4f4d-b89a-9d44142141bd" xlink:to="loc_wst_ProvisionForProductReturns_32793ba6-4ab0-4d24-987e-0a709f6ed206" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.westpharma.com/role/NetIncomePerShare" xlink:type="simple" xlink:href="wst-20200331.xsd#NetIncomePerShare"/>
  <link:presentationLink xlink:role="http://www.westpharma.com/role/NetIncomePerShare" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EarningsPerShareAbstract_faac5d65-bad8-4ead-b6db-1672deaa4a9c" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_EarningsPerShareAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EarningsPerShareTextBlock_09f52e38-af9e-4081-b3a6-ff352896d77e" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_EarningsPerShareTextBlock"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EarningsPerShareAbstract_faac5d65-bad8-4ead-b6db-1672deaa4a9c" xlink:to="loc_us-gaap_EarningsPerShareTextBlock_09f52e38-af9e-4081-b3a6-ff352896d77e" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.westpharma.com/role/NetIncomePerShareTables" xlink:type="simple" xlink:href="wst-20200331.xsd#NetIncomePerShareTables"/>
  <link:presentationLink xlink:role="http://www.westpharma.com/role/NetIncomePerShareTables" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EarningsPerShareAbstract_7a7a8f98-2e68-44ef-9253-9468d00ffff8" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_EarningsPerShareAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock_a6338b86-f961-470e-8707-21f896580c09" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EarningsPerShareAbstract_7a7a8f98-2e68-44ef-9253-9468d00ffff8" xlink:to="loc_us-gaap_ScheduleOfEarningsPerShareBasicAndDilutedTableTextBlock_a6338b86-f961-470e-8707-21f896580c09" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.westpharma.com/role/NetIncomePerShareDetails" xlink:type="simple" xlink:href="wst-20200331.xsd#NetIncomePerShareDetails"/>
  <link:presentationLink xlink:role="http://www.westpharma.com/role/NetIncomePerShareDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EarningsPerShareAbstract_378ff559-c5d6-4667-93f4-c631a9ba4253" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_EarningsPerShareAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProfitLoss_89f99a2f-b2e0-41d7-a903-44e34988c682" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ProfitLoss"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EarningsPerShareAbstract_378ff559-c5d6-4667-93f4-c631a9ba4253" xlink:to="loc_us-gaap_ProfitLoss_89f99a2f-b2e0-41d7-a903-44e34988c682" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_WeightedAverageNumberOfSharesOutstandingBasic_43931168-60fe-498d-94c2-1ca65b58c360" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_WeightedAverageNumberOfSharesOutstandingBasic"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EarningsPerShareAbstract_378ff559-c5d6-4667-93f4-c631a9ba4253" xlink:to="loc_us-gaap_WeightedAverageNumberOfSharesOutstandingBasic_43931168-60fe-498d-94c2-1ca65b58c360" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncrementalCommonSharesAttributableToShareBasedPaymentArrangements_414ce9e0-f045-49c5-985b-0b79a7180687" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_IncrementalCommonSharesAttributableToShareBasedPaymentArrangements"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EarningsPerShareAbstract_378ff559-c5d6-4667-93f4-c631a9ba4253" xlink:to="loc_us-gaap_IncrementalCommonSharesAttributableToShareBasedPaymentArrangements_414ce9e0-f045-49c5-985b-0b79a7180687" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding_46bc9120-ba59-400e-96c2-9793452bdeb7" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EarningsPerShareAbstract_378ff559-c5d6-4667-93f4-c631a9ba4253" xlink:to="loc_us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding_46bc9120-ba59-400e-96c2-9793452bdeb7" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/totalLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount_3403fa60-1a2f-4d3c-bd62-0e740bae28d4" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount"/>
    <link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EarningsPerShareAbstract_378ff559-c5d6-4667-93f4-c631a9ba4253" xlink:to="loc_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount_3403fa60-1a2f-4d3c-bd62-0e740bae28d4" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockRepurchaseProgramNumberOfSharesAuthorizedToBeRepurchased_0fa30d49-8aaf-435d-b40a-de6d61a2fa14" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_StockRepurchaseProgramNumberOfSharesAuthorizedToBeRepurchased"/>
    <link:presentationArc order="6" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EarningsPerShareAbstract_378ff559-c5d6-4667-93f4-c631a9ba4253" xlink:to="loc_us-gaap_StockRepurchaseProgramNumberOfSharesAuthorizedToBeRepurchased_0fa30d49-8aaf-435d-b40a-de6d61a2fa14" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TreasuryStockSharesAcquired_d6be996e-ff60-439e-bfe0-ed16ae5f6629" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_TreasuryStockSharesAcquired"/>
    <link:presentationArc order="7" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EarningsPerShareAbstract_378ff559-c5d6-4667-93f4-c631a9ba4253" xlink:to="loc_us-gaap_TreasuryStockSharesAcquired_d6be996e-ff60-439e-bfe0-ed16ae5f6629" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TreasuryStockValueAcquiredCostMethod_5b636e6c-fbed-4f3a-a7ca-1679ff90f7ce" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_TreasuryStockValueAcquiredCostMethod"/>
    <link:presentationArc order="8" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EarningsPerShareAbstract_378ff559-c5d6-4667-93f4-c631a9ba4253" xlink:to="loc_us-gaap_TreasuryStockValueAcquiredCostMethod_5b636e6c-fbed-4f3a-a7ca-1679ff90f7ce" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TreasuryStockAcquiredAverageCostPerShare_cafd4b3f-6ba5-4f76-a25b-c9f9ccf2def3" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_TreasuryStockAcquiredAverageCostPerShare"/>
    <link:presentationArc order="9" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EarningsPerShareAbstract_378ff559-c5d6-4667-93f4-c631a9ba4253" xlink:to="loc_us-gaap_TreasuryStockAcquiredAverageCostPerShare_cafd4b3f-6ba5-4f76-a25b-c9f9ccf2def3" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.westpharma.com/role/Inventories" xlink:type="simple" xlink:href="wst-20200331.xsd#Inventories"/>
  <link:presentationLink xlink:role="http://www.westpharma.com/role/Inventories" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InventoryDisclosureAbstract_1ab5c594-1b6a-4b17-a031-eecf4fd86a56" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_InventoryDisclosureAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InventoryDisclosureTextBlock_2c44622c-5e60-4e53-a857-86df67f73d63" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_InventoryDisclosureTextBlock"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_InventoryDisclosureAbstract_1ab5c594-1b6a-4b17-a031-eecf4fd86a56" xlink:to="loc_us-gaap_InventoryDisclosureTextBlock_2c44622c-5e60-4e53-a857-86df67f73d63" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.westpharma.com/role/InventoriesTables" xlink:type="simple" xlink:href="wst-20200331.xsd#InventoriesTables"/>
  <link:presentationLink xlink:role="http://www.westpharma.com/role/InventoriesTables" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InventoryDisclosureAbstract_5f382828-a66d-46ad-9e1e-e79a61a08b90" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_InventoryDisclosureAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfInventoryCurrentTableTextBlock_9fcc1bd4-3cc8-478c-8c5c-f9322e8b238b" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ScheduleOfInventoryCurrentTableTextBlock"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_InventoryDisclosureAbstract_5f382828-a66d-46ad-9e1e-e79a61a08b90" xlink:to="loc_us-gaap_ScheduleOfInventoryCurrentTableTextBlock_9fcc1bd4-3cc8-478c-8c5c-f9322e8b238b" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.westpharma.com/role/InventoriesDetails" xlink:type="simple" xlink:href="wst-20200331.xsd#InventoriesDetails"/>
  <link:presentationLink xlink:role="http://www.westpharma.com/role/InventoriesDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InventoryDisclosureAbstract_57360f4d-17e5-47e9-9a50-13952603595a" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_InventoryDisclosureAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InventoryRawMaterialsNetOfReserves_c9c2053a-d5c2-4c6b-9ea4-2e68a431ea52" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_InventoryRawMaterialsNetOfReserves"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_InventoryDisclosureAbstract_57360f4d-17e5-47e9-9a50-13952603595a" xlink:to="loc_us-gaap_InventoryRawMaterialsNetOfReserves_c9c2053a-d5c2-4c6b-9ea4-2e68a431ea52" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InventoryWorkInProcessNetOfReserves_d6ab4da5-394a-4abf-8ae5-378592416c31" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_InventoryWorkInProcessNetOfReserves"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_InventoryDisclosureAbstract_57360f4d-17e5-47e9-9a50-13952603595a" xlink:to="loc_us-gaap_InventoryWorkInProcessNetOfReserves_d6ab4da5-394a-4abf-8ae5-378592416c31" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InventoryFinishedGoodsNetOfReserves_4312c120-53f0-4a38-b5f4-bbe5ebeb8db2" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_InventoryFinishedGoodsNetOfReserves"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_InventoryDisclosureAbstract_57360f4d-17e5-47e9-9a50-13952603595a" xlink:to="loc_us-gaap_InventoryFinishedGoodsNetOfReserves_4312c120-53f0-4a38-b5f4-bbe5ebeb8db2" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InventoryNet_664cba43-1f16-4747-a6bd-d5bd544c42c6" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_InventoryNet"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_InventoryDisclosureAbstract_57360f4d-17e5-47e9-9a50-13952603595a" xlink:to="loc_us-gaap_InventoryNet_664cba43-1f16-4747-a6bd-d5bd544c42c6" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/totalLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.westpharma.com/role/Leases" xlink:type="simple" xlink:href="wst-20200331.xsd#Leases"/>
  <link:presentationLink xlink:role="http://www.westpharma.com/role/Leases" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LeasesAbstract_0cf7dbf4-7f6c-44f9-bca4-fad1f059d79f" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LeasesAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LeasesOfLesseeDisclosureTextBlock_3b68fba1-117a-4cf2-a509-ab8f8e304c94" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LeasesOfLesseeDisclosureTextBlock"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LeasesAbstract_0cf7dbf4-7f6c-44f9-bca4-fad1f059d79f" xlink:to="loc_us-gaap_LeasesOfLesseeDisclosureTextBlock_3b68fba1-117a-4cf2-a509-ab8f8e304c94" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.westpharma.com/role/LeasesTables" xlink:type="simple" xlink:href="wst-20200331.xsd#LeasesTables"/>
  <link:presentationLink xlink:role="http://www.westpharma.com/role/LeasesTables" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LeasesAbstract_e640558a-0aba-452b-8cbc-5cd6069dd910" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LeasesAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LeaseCostTableTextBlock_b61dec84-5be3-42f4-a3e9-b840f52e02d2" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LeaseCostTableTextBlock"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LeasesAbstract_e640558a-0aba-452b-8cbc-5cd6069dd910" xlink:to="loc_us-gaap_LeaseCostTableTextBlock_b61dec84-5be3-42f4-a3e9-b840f52e02d2" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_wst_LesseeLeaseCashFlowandSupplementalInformationTableTextBlock_49b86087-61d1-41aa-a11d-8176e439f5f8" xlink:href="wst-20200331.xsd#wst_LesseeLeaseCashFlowandSupplementalInformationTableTextBlock"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LeasesAbstract_e640558a-0aba-452b-8cbc-5cd6069dd910" xlink:to="loc_wst_LesseeLeaseCashFlowandSupplementalInformationTableTextBlock_49b86087-61d1-41aa-a11d-8176e439f5f8" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LesseeOperatingLeaseLiabilityMaturityTableTextBlock_6af1e05b-28b8-4c2a-9f62-756d45d03f8c" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LesseeOperatingLeaseLiabilityMaturityTableTextBlock"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LeasesAbstract_e640558a-0aba-452b-8cbc-5cd6069dd910" xlink:to="loc_us-gaap_LesseeOperatingLeaseLiabilityMaturityTableTextBlock_6af1e05b-28b8-4c2a-9f62-756d45d03f8c" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfFutureMinimumRentalPaymentsForOperatingLeasesTableTextBlock_4020a373-b337-4bde-80dc-da231f1ef001" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ScheduleOfFutureMinimumRentalPaymentsForOperatingLeasesTableTextBlock"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LeasesAbstract_e640558a-0aba-452b-8cbc-5cd6069dd910" xlink:to="loc_us-gaap_ScheduleOfFutureMinimumRentalPaymentsForOperatingLeasesTableTextBlock_4020a373-b337-4bde-80dc-da231f1ef001" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.westpharma.com/role/LeaseCostDetails" xlink:type="simple" xlink:href="wst-20200331.xsd#LeaseCostDetails"/>
  <link:presentationLink xlink:role="http://www.westpharma.com/role/LeaseCostDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LeaseCostAbstract_fadb6437-6e13-4a85-b3e1-3b8dd5c2bb56" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LeaseCostAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingLeaseCost_e9797664-8d7e-4a4e-a0e1-6bc60001411e" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_OperatingLeaseCost"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LeaseCostAbstract_fadb6437-6e13-4a85-b3e1-3b8dd5c2bb56" xlink:to="loc_us-gaap_OperatingLeaseCost_e9797664-8d7e-4a4e-a0e1-6bc60001411e" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShortTermLeaseCost_0ac078d5-fbb4-4f3b-a30a-6a99e8897606" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ShortTermLeaseCost"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LeaseCostAbstract_fadb6437-6e13-4a85-b3e1-3b8dd5c2bb56" xlink:to="loc_us-gaap_ShortTermLeaseCost_0ac078d5-fbb4-4f3b-a30a-6a99e8897606" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_VariableLeaseCost_50ff8bf5-610c-464e-9dbf-289f7c22c98a" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_VariableLeaseCost"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LeaseCostAbstract_fadb6437-6e13-4a85-b3e1-3b8dd5c2bb56" xlink:to="loc_us-gaap_VariableLeaseCost_50ff8bf5-610c-464e-9dbf-289f7c22c98a" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LeaseCost_2cf43457-ddee-4e0c-8a20-f2b34ceffb66" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LeaseCost"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LeaseCostAbstract_fadb6437-6e13-4a85-b3e1-3b8dd5c2bb56" xlink:to="loc_us-gaap_LeaseCost_2cf43457-ddee-4e0c-8a20-f2b34ceffb66" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.westpharma.com/role/LeaseCashFlowandSupplementalInformationDetails" xlink:type="simple" xlink:href="wst-20200331.xsd#LeaseCashFlowandSupplementalInformationDetails"/>
  <link:presentationLink xlink:role="http://www.westpharma.com/role/LeaseCashFlowandSupplementalInformationDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_wst_LeaseCashFlowandSupplementalInformationAbstract_94cf5a51-5d03-4f28-bfba-d981cf1f02a9" xlink:href="wst-20200331.xsd#wst_LeaseCashFlowandSupplementalInformationAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingLeasePayments_4252e76c-a2b0-45fc-9aca-95901cb85020" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_OperatingLeasePayments"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_wst_LeaseCashFlowandSupplementalInformationAbstract_94cf5a51-5d03-4f28-bfba-d981cf1f02a9" xlink:to="loc_us-gaap_OperatingLeasePayments_4252e76c-a2b0-45fc-9aca-95901cb85020" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability_e01086e6-cad7-4941-a731-92bbc22c99a6" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_wst_LeaseCashFlowandSupplementalInformationAbstract_94cf5a51-5d03-4f28-bfba-d981cf1f02a9" xlink:to="loc_us-gaap_RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability_e01086e6-cad7-4941-a731-92bbc22c99a6" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.westpharma.com/role/LeaseWeightedAverageDetails" xlink:type="simple" xlink:href="wst-20200331.xsd#LeaseWeightedAverageDetails"/>
  <link:presentationLink xlink:role="http://www.westpharma.com/role/LeaseWeightedAverageDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_wst_LeaseCashFlowandSupplementalInformationAbstract_bba3585e-7f38-4158-b202-ba1060572b3b" xlink:href="wst-20200331.xsd#wst_LeaseCashFlowandSupplementalInformationAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingLeaseWeightedAverageRemainingLeaseTerm1_3f83e5e7-d71c-4a81-ad86-c5bfcf88ed00" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_OperatingLeaseWeightedAverageRemainingLeaseTerm1"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_wst_LeaseCashFlowandSupplementalInformationAbstract_bba3585e-7f38-4158-b202-ba1060572b3b" xlink:to="loc_us-gaap_OperatingLeaseWeightedAverageRemainingLeaseTerm1_3f83e5e7-d71c-4a81-ad86-c5bfcf88ed00" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingLeaseWeightedAverageDiscountRatePercent_f51e631f-9d4a-4152-bcc4-2b0863a5a22e" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_OperatingLeaseWeightedAverageDiscountRatePercent"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_wst_LeaseCashFlowandSupplementalInformationAbstract_bba3585e-7f38-4158-b202-ba1060572b3b" xlink:to="loc_us-gaap_OperatingLeaseWeightedAverageDiscountRatePercent_f51e631f-9d4a-4152-bcc4-2b0863a5a22e" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.westpharma.com/role/MaturitiesofOperatingLeaseLiabilitiesDetails" xlink:type="simple" xlink:href="wst-20200331.xsd#MaturitiesofOperatingLeaseLiabilitiesDetails"/>
  <link:presentationLink xlink:role="http://www.westpharma.com/role/MaturitiesofOperatingLeaseLiabilitiesDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LeasesAbstract_8991e318-ebd2-4c21-9e8f-c43876386af8" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LeasesAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsRemainderOfFiscalYear_576afde9-2791-4414-b4e1-01dba2e2551d" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LesseeOperatingLeaseLiabilityPaymentsRemainderOfFiscalYear"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LeasesAbstract_8991e318-ebd2-4c21-9e8f-c43876386af8" xlink:to="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsRemainderOfFiscalYear_576afde9-2791-4414-b4e1-01dba2e2551d" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearTwo_cac9fdf9-0f14-4580-b34f-8ac4d22b743f" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearTwo"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LeasesAbstract_8991e318-ebd2-4c21-9e8f-c43876386af8" xlink:to="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearTwo_cac9fdf9-0f14-4580-b34f-8ac4d22b743f" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearThree_1e6bd66d-e579-4cef-b17b-1006c228a560" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearThree"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LeasesAbstract_8991e318-ebd2-4c21-9e8f-c43876386af8" xlink:to="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearThree_1e6bd66d-e579-4cef-b17b-1006c228a560" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearFour_a14e3bf5-54a2-40e0-87a9-fff14c0f46fb" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearFour"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LeasesAbstract_8991e318-ebd2-4c21-9e8f-c43876386af8" xlink:to="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearFour_a14e3bf5-54a2-40e0-87a9-fff14c0f46fb" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearFive_efc04980-2f7a-4843-9391-2b23be760068" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearFive"/>
    <link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LeasesAbstract_8991e318-ebd2-4c21-9e8f-c43876386af8" xlink:to="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearFive_efc04980-2f7a-4843-9391-2b23be760068" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive_0c939008-5102-494d-9454-b66d7fc09bbf" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive"/>
    <link:presentationArc order="6" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LeasesAbstract_8991e318-ebd2-4c21-9e8f-c43876386af8" xlink:to="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueAfterYearFive_0c939008-5102-494d-9454-b66d7fc09bbf" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue_1b0060e2-4438-4073-a78b-2e2afe900d05" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue"/>
    <link:presentationArc order="7" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LeasesAbstract_8991e318-ebd2-4c21-9e8f-c43876386af8" xlink:to="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue_1b0060e2-4438-4073-a78b-2e2afe900d05" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LesseeOperatingLeaseLiabilityUndiscountedExcessAmount_462a45a9-b238-4450-989a-f02565ff9c13" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LesseeOperatingLeaseLiabilityUndiscountedExcessAmount"/>
    <link:presentationArc order="8" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LeasesAbstract_8991e318-ebd2-4c21-9e8f-c43876386af8" xlink:to="loc_us-gaap_LesseeOperatingLeaseLiabilityUndiscountedExcessAmount_462a45a9-b238-4450-989a-f02565ff9c13" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingLeaseLiability_5923122d-0ee5-40cb-9591-14f9ed2d04c5" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_OperatingLeaseLiability"/>
    <link:presentationArc order="9" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LeasesAbstract_8991e318-ebd2-4c21-9e8f-c43876386af8" xlink:to="loc_us-gaap_OperatingLeaseLiability_5923122d-0ee5-40cb-9591-14f9ed2d04c5" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.westpharma.com/role/AffiliatedCompanies" xlink:type="simple" xlink:href="wst-20200331.xsd#AffiliatedCompanies"/>
  <link:presentationLink xlink:role="http://www.westpharma.com/role/AffiliatedCompanies" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquityMethodInvestmentsAndJointVenturesAbstract_db8e3019-4949-45c8-8562-39c3ba393705" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_EquityMethodInvestmentsAndJointVenturesAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquityMethodInvestmentsDisclosureTextBlock_e7bdbd10-778b-4fc9-8e6c-f77f92511aa7" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_EquityMethodInvestmentsDisclosureTextBlock"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EquityMethodInvestmentsAndJointVenturesAbstract_db8e3019-4949-45c8-8562-39c3ba393705" xlink:to="loc_us-gaap_EquityMethodInvestmentsDisclosureTextBlock_e7bdbd10-778b-4fc9-8e6c-f77f92511aa7" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.westpharma.com/role/AffiliatedCompaniesDetails" xlink:type="simple" xlink:href="wst-20200331.xsd#AffiliatedCompaniesDetails"/>
  <link:presentationLink xlink:role="http://www.westpharma.com/role/AffiliatedCompaniesDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquityMethodInvestmentsAndJointVenturesAbstract_871f57df-0fd9-4583-9028-91476b7fb12d" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_EquityMethodInvestmentsAndJointVenturesAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfEquityMethodInvestmentsTable_da056339-f47a-4acc-8c4f-6b3630311346" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ScheduleOfEquityMethodInvestmentsTable"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EquityMethodInvestmentsAndJointVenturesAbstract_871f57df-0fd9-4583-9028-91476b7fb12d" xlink:to="loc_us-gaap_ScheduleOfEquityMethodInvestmentsTable_da056339-f47a-4acc-8c4f-6b3630311346" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis_c606d1f6-de09-42cf-94fa-8aea20869478" xlink:href="http://xbrl.fasb.org/srt/2019/elts/srt-2019-01-31.xsd#srt_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfEquityMethodInvestmentsTable_da056339-f47a-4acc-8c4f-6b3630311346" xlink:to="loc_srt_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis_c606d1f6-de09-42cf-94fa-8aea20869478" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_EquityMethodInvesteeNameDomain_d6bbe1ed-bf11-44ef-b8ab-95e0ec2ed621" xlink:href="http://xbrl.fasb.org/srt/2019/elts/srt-2019-01-31.xsd#srt_EquityMethodInvesteeNameDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_srt_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis_c606d1f6-de09-42cf-94fa-8aea20869478" xlink:to="loc_srt_EquityMethodInvesteeNameDomain_d6bbe1ed-bf11-44ef-b8ab-95e0ec2ed621" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_wst_DaikyoSeikoLtdDaikyoMember_db69a5ac-7dac-4943-810d-e640e1abf889" xlink:href="wst-20200331.xsd#wst_DaikyoSeikoLtdDaikyoMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_srt_EquityMethodInvesteeNameDomain_d6bbe1ed-bf11-44ef-b8ab-95e0ec2ed621" xlink:to="loc_wst_DaikyoSeikoLtdDaikyoMember_db69a5ac-7dac-4943-810d-e640e1abf889" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DisposalGroupClassificationAxis_d573c61a-6404-4e09-9dd6-cc7f3759bf5b" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DisposalGroupClassificationAxis"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfEquityMethodInvestmentsTable_da056339-f47a-4acc-8c4f-6b3630311346" xlink:to="loc_us-gaap_DisposalGroupClassificationAxis_d573c61a-6404-4e09-9dd6-cc7f3759bf5b" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DisposalGroupClassificationDomain_4b1c8654-ee40-471f-83c6-146d6edc2412" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DisposalGroupClassificationDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DisposalGroupClassificationAxis_d573c61a-6404-4e09-9dd6-cc7f3759bf5b" xlink:to="loc_us-gaap_DisposalGroupClassificationDomain_4b1c8654-ee40-471f-83c6-146d6edc2412" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfEquityMethodInvestmentsLineItems_d399345b-e2c1-4f15-9351-9f9c7006bf7d" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ScheduleOfEquityMethodInvestmentsLineItems"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfEquityMethodInvestmentsTable_da056339-f47a-4acc-8c4f-6b3630311346" xlink:to="loc_us-gaap_ScheduleOfEquityMethodInvestmentsLineItems_d399345b-e2c1-4f15-9351-9f9c7006bf7d" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_wst_PurchasesAndRoyaltyPaymentsFromEquityMethodInvestees_63c55308-a82b-4789-94e5-646c48bcf23b" xlink:href="wst-20200331.xsd#wst_PurchasesAndRoyaltyPaymentsFromEquityMethodInvestees"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfEquityMethodInvestmentsLineItems_d399345b-e2c1-4f15-9351-9f9c7006bf7d" xlink:to="loc_wst_PurchasesAndRoyaltyPaymentsFromEquityMethodInvestees_63c55308-a82b-4789-94e5-646c48bcf23b" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DueToAffiliateCurrentAndNoncurrent_03c3eef0-abd6-4cdb-99a8-b172704273d8" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DueToAffiliateCurrentAndNoncurrent"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfEquityMethodInvestmentsLineItems_d399345b-e2c1-4f15-9351-9f9c7006bf7d" xlink:to="loc_us-gaap_DueToAffiliateCurrentAndNoncurrent_03c3eef0-abd6-4cdb-99a8-b172704273d8" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_wst_SalesToEquityMethodInvestees_ab03c9c9-26db-4322-b53d-1d0a3a3e5f6d" xlink:href="wst-20200331.xsd#wst_SalesToEquityMethodInvestees"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfEquityMethodInvestmentsLineItems_d399345b-e2c1-4f15-9351-9f9c7006bf7d" xlink:to="loc_wst_SalesToEquityMethodInvestees_ab03c9c9-26db-4322-b53d-1d0a3a3e5f6d" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DueFromAffiliates_5c330e2c-8168-40f1-9b28-0ad8cbe70491" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DueFromAffiliates"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfEquityMethodInvestmentsLineItems_d399345b-e2c1-4f15-9351-9f9c7006bf7d" xlink:to="loc_us-gaap_DueFromAffiliates_5c330e2c-8168-40f1-9b28-0ad8cbe70491" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsToAcquireInterestInSubsidiariesAndAffiliates_8b220e79-07be-4ede-90c9-8dc10335ff14" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_PaymentsToAcquireInterestInSubsidiariesAndAffiliates"/>
    <link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfEquityMethodInvestmentsLineItems_d399345b-e2c1-4f15-9351-9f9c7006bf7d" xlink:to="loc_us-gaap_PaymentsToAcquireInterestInSubsidiariesAndAffiliates_8b220e79-07be-4ede-90c9-8dc10335ff14" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockIssuedDuringPeriodValueAcquisitions_32af42b9-e535-4ef7-8695-1a24e8176371" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_StockIssuedDuringPeriodValueAcquisitions"/>
    <link:presentationArc order="6" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfEquityMethodInvestmentsLineItems_d399345b-e2c1-4f15-9351-9f9c7006bf7d" xlink:to="loc_us-gaap_StockIssuedDuringPeriodValueAcquisitions_32af42b9-e535-4ef7-8695-1a24e8176371" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquityMethodInvestmentOwnershipPercentage_4550e4ac-e765-46bb-873b-4f2dfa50aac8" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_EquityMethodInvestmentOwnershipPercentage"/>
    <link:presentationArc order="7" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfEquityMethodInvestmentsLineItems_d399345b-e2c1-4f15-9351-9f9c7006bf7d" xlink:to="loc_us-gaap_EquityMethodInvestmentOwnershipPercentage_4550e4ac-e765-46bb-873b-4f2dfa50aac8" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquityMethodInvestments_af28a4c8-8d2d-42fc-aea5-26a31d22cd98" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_EquityMethodInvestments"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EquityMethodInvestmentsAndJointVenturesAbstract_871f57df-0fd9-4583-9028-91476b7fb12d" xlink:to="loc_us-gaap_EquityMethodInvestments_af28a4c8-8d2d-42fc-aea5-26a31d22cd98" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CostMethodInvestments_7b5b3b0f-83c8-4662-a020-35e8adc96d7a" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_CostMethodInvestments"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EquityMethodInvestmentsAndJointVenturesAbstract_871f57df-0fd9-4583-9028-91476b7fb12d" xlink:to="loc_us-gaap_CostMethodInvestments_7b5b3b0f-83c8-4662-a020-35e8adc96d7a" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.westpharma.com/role/Debt" xlink:type="simple" xlink:href="wst-20200331.xsd#Debt"/>
  <link:presentationLink xlink:role="http://www.westpharma.com/role/Debt" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtDisclosureAbstract_4cdbd17a-cc0a-4210-a561-a8f20118051d" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DebtDisclosureAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtDisclosureTextBlock_75bc8cd3-5106-4895-9b40-7b9afb1916f1" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DebtDisclosureTextBlock"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtDisclosureAbstract_4cdbd17a-cc0a-4210-a561-a8f20118051d" xlink:to="loc_us-gaap_DebtDisclosureTextBlock_75bc8cd3-5106-4895-9b40-7b9afb1916f1" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.westpharma.com/role/DebtTables" xlink:type="simple" xlink:href="wst-20200331.xsd#DebtTables"/>
  <link:presentationLink xlink:role="http://www.westpharma.com/role/DebtTables" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtDisclosureAbstract_c56803a9-b58b-4ea3-9d59-b38e8ebbd8a2" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DebtDisclosureAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfDebtTableTextBlock_f0688150-313c-4de4-b384-28d3166830bb" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ScheduleOfDebtTableTextBlock"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtDisclosureAbstract_c56803a9-b58b-4ea3-9d59-b38e8ebbd8a2" xlink:to="loc_us-gaap_ScheduleOfDebtTableTextBlock_f0688150-313c-4de4-b384-28d3166830bb" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.westpharma.com/role/LongtermDebtDetails" xlink:type="simple" xlink:href="wst-20200331.xsd#LongtermDebtDetails"/>
  <link:presentationLink xlink:role="http://www.westpharma.com/role/LongtermDebtDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtDisclosureAbstract_fb7d3a0e-fe6c-44e4-9abb-6362879fad59" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DebtDisclosureAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentTable_f7ee037b-9680-411a-91fc-587ad04abe06" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DebtInstrumentTable"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtDisclosureAbstract_fb7d3a0e-fe6c-44e4-9abb-6362879fad59" xlink:to="loc_us-gaap_DebtInstrumentTable_f7ee037b-9680-411a-91fc-587ad04abe06" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeAxis_97babd8a-0bda-4e4d-a85c-a15bcf1523d1" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LongtermDebtTypeAxis"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentTable_f7ee037b-9680-411a-91fc-587ad04abe06" xlink:to="loc_us-gaap_LongtermDebtTypeAxis_97babd8a-0bda-4e4d-a85c-a15bcf1523d1" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeDomain_ac9cab96-85d5-40a9-b9c4-6e6b6c7fba88" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LongtermDebtTypeDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LongtermDebtTypeAxis_97babd8a-0bda-4e4d-a85c-a15bcf1523d1" xlink:to="loc_us-gaap_LongtermDebtTypeDomain_ac9cab96-85d5-40a9-b9c4-6e6b6c7fba88" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_wst_Revolvingcreditfacilitydue2024Member_d3cec0b9-1562-4307-97c7-5d8e20c7ea24" xlink:href="wst-20200331.xsd#wst_Revolvingcreditfacilitydue2024Member"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LongtermDebtTypeDomain_ac9cab96-85d5-40a9-b9c4-6e6b6c7fba88" xlink:to="loc_wst_Revolvingcreditfacilitydue2024Member_d3cec0b9-1562-4307-97c7-5d8e20c7ea24" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_wst_TermLoanDue2024Member_cf7c03e7-ac52-424a-8621-694728dfcb7e" xlink:href="wst-20200331.xsd#wst_TermLoanDue2024Member"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LongtermDebtTypeDomain_ac9cab96-85d5-40a9-b9c4-6e6b6c7fba88" xlink:to="loc_wst_TermLoanDue2024Member_cf7c03e7-ac52-424a-8621-694728dfcb7e" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_wst_SeniorNotesDue2022Member_e6c4e2f7-83fb-4e9d-9ddd-2e942f6829cf" xlink:href="wst-20200331.xsd#wst_SeniorNotesDue2022Member"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LongtermDebtTypeDomain_ac9cab96-85d5-40a9-b9c4-6e6b6c7fba88" xlink:to="loc_wst_SeniorNotesDue2022Member_e6c4e2f7-83fb-4e9d-9ddd-2e942f6829cf" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_wst_SeniorBNotesDue2024Member_bfd0574e-0bdc-4301-b74c-12da9da5b063" xlink:href="wst-20200331.xsd#wst_SeniorBNotesDue2024Member"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LongtermDebtTypeDomain_ac9cab96-85d5-40a9-b9c4-6e6b6c7fba88" xlink:to="loc_wst_SeniorBNotesDue2024Member_bfd0574e-0bdc-4301-b74c-12da9da5b063" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_wst_SeniorCNotesDue2027Member_f914bc05-fc83-4767-974a-9426962f56dc" xlink:href="wst-20200331.xsd#wst_SeniorCNotesDue2027Member"/>
    <link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LongtermDebtTypeDomain_ac9cab96-85d5-40a9-b9c4-6e6b6c7fba88" xlink:to="loc_wst_SeniorCNotesDue2027Member_f914bc05-fc83-4767-974a-9426962f56dc" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_wst_TermLoanDue2024Domain_cd9f3407-f3b8-4ddd-818b-90aa6c3ffd74" xlink:href="wst-20200331.xsd#wst_TermLoanDue2024Domain"/>
    <link:presentationArc order="6" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LongtermDebtTypeDomain_ac9cab96-85d5-40a9-b9c4-6e6b6c7fba88" xlink:to="loc_wst_TermLoanDue2024Domain_cd9f3407-f3b8-4ddd-818b-90aa6c3ffd74" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentLineItems_55075796-74b5-4a49-a4bb-2ebb738c96e9" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DebtInstrumentLineItems"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentTable_f7ee037b-9680-411a-91fc-587ad04abe06" xlink:to="loc_us-gaap_DebtInstrumentLineItems_55075796-74b5-4a49-a4bb-2ebb738c96e9" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentInterestRateStatedPercentage_3aa7a426-d524-4146-9f18-befec285b2cb" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DebtInstrumentInterestRateStatedPercentage"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentLineItems_55075796-74b5-4a49-a4bb-2ebb738c96e9" xlink:to="loc_us-gaap_DebtInstrumentInterestRateStatedPercentage_3aa7a426-d524-4146-9f18-befec285b2cb" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentCarryingAmount_09d2f654-0e0a-4197-b2c4-23edb7c9640b" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DebtInstrumentCarryingAmount"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentLineItems_55075796-74b5-4a49-a4bb-2ebb738c96e9" xlink:to="loc_us-gaap_DebtInstrumentCarryingAmount_09d2f654-0e0a-4197-b2c4-23edb7c9640b" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_UnamortizedDebtIssuanceExpense_d313b6ae-74fc-4037-b13d-ea87633088d9" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_UnamortizedDebtIssuanceExpense"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentLineItems_55075796-74b5-4a49-a4bb-2ebb738c96e9" xlink:to="loc_us-gaap_UnamortizedDebtIssuanceExpense_d313b6ae-74fc-4037-b13d-ea87633088d9" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermDebt_1b0789ed-0cde-4ff0-8ed3-6413fa354d0b" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LongTermDebt"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentLineItems_55075796-74b5-4a49-a4bb-2ebb738c96e9" xlink:to="loc_us-gaap_LongTermDebt_1b0789ed-0cde-4ff0-8ed3-6413fa354d0b" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtCurrent_1038db04-272f-463d-b709-5a5d5f6bc9e9" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DebtCurrent"/>
    <link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentLineItems_55075796-74b5-4a49-a4bb-2ebb738c96e9" xlink:to="loc_us-gaap_DebtCurrent_1038db04-272f-463d-b709-5a5d5f6bc9e9" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermDebtNoncurrent_0d86ea29-abf9-4d59-a9fc-6fe9da2b4ddf" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LongTermDebtNoncurrent"/>
    <link:presentationArc order="6" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtInstrumentLineItems_55075796-74b5-4a49-a4bb-2ebb738c96e9" xlink:to="loc_us-gaap_LongTermDebtNoncurrent_0d86ea29-abf9-4d59-a9fc-6fe9da2b4ddf" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.westpharma.com/role/CreditAgreementDetails" xlink:type="simple" xlink:href="wst-20200331.xsd#CreditAgreementDetails"/>
  <link:presentationLink xlink:role="http://www.westpharma.com/role/CreditAgreementDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtDisclosureAbstract_dbc6c7eb-87f5-46a6-8bbd-3a23dab78c96" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DebtDisclosureAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LineOfCreditFacilityTable_64cf2dfb-d455-4e99-8537-32c11a97412c" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LineOfCreditFacilityTable"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DebtDisclosureAbstract_dbc6c7eb-87f5-46a6-8bbd-3a23dab78c96" xlink:to="loc_us-gaap_LineOfCreditFacilityTable_64cf2dfb-d455-4e99-8537-32c11a97412c" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeAxis_3e080522-da4a-4bb1-b6a9-b54d6a209643" xlink:href="http://xbrl.fasb.org/srt/2019/elts/srt-2019-01-31.xsd#srt_RangeAxis"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LineOfCreditFacilityTable_64cf2dfb-d455-4e99-8537-32c11a97412c" xlink:to="loc_srt_RangeAxis_3e080522-da4a-4bb1-b6a9-b54d6a209643" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeMember_2ade061c-0ee4-4683-8ff3-dbcc8fc69c3f" xlink:href="http://xbrl.fasb.org/srt/2019/elts/srt-2019-01-31.xsd#srt_RangeMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_srt_RangeAxis_3e080522-da4a-4bb1-b6a9-b54d6a209643" xlink:to="loc_srt_RangeMember_2ade061c-0ee4-4683-8ff3-dbcc8fc69c3f" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_MaximumMember_dcbba8dc-bc2d-41cb-b6fd-bb85888afd75" xlink:href="http://xbrl.fasb.org/srt/2019/elts/srt-2019-01-31.xsd#srt_MaximumMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_srt_RangeMember_2ade061c-0ee4-4683-8ff3-dbcc8fc69c3f" xlink:to="loc_srt_MaximumMember_dcbba8dc-bc2d-41cb-b6fd-bb85888afd75" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_MinimumMember_60813a32-9733-4b6c-9b45-e6537884475f" xlink:href="http://xbrl.fasb.org/srt/2019/elts/srt-2019-01-31.xsd#srt_MinimumMember"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_srt_RangeMember_2ade061c-0ee4-4683-8ff3-dbcc8fc69c3f" xlink:to="loc_srt_MinimumMember_60813a32-9733-4b6c-9b45-e6537884475f" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeAxis_ec9d60c0-ae32-4260-b7bb-f80620007fbc" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LongtermDebtTypeAxis"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LineOfCreditFacilityTable_64cf2dfb-d455-4e99-8537-32c11a97412c" xlink:to="loc_us-gaap_LongtermDebtTypeAxis_ec9d60c0-ae32-4260-b7bb-f80620007fbc" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeDomain_71d3ff8e-bc9a-4914-980e-42c25254b542" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LongtermDebtTypeDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LongtermDebtTypeAxis_ec9d60c0-ae32-4260-b7bb-f80620007fbc" xlink:to="loc_us-gaap_LongtermDebtTypeDomain_71d3ff8e-bc9a-4914-980e-42c25254b542" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_wst_Revolvingcreditfacilitydue2024Member_38533702-c3e2-40d1-95ec-aea7aa6275cc" xlink:href="wst-20200331.xsd#wst_Revolvingcreditfacilitydue2024Member"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LongtermDebtTypeDomain_71d3ff8e-bc9a-4914-980e-42c25254b542" xlink:to="loc_wst_Revolvingcreditfacilitydue2024Member_38533702-c3e2-40d1-95ec-aea7aa6275cc" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_wst_TermLoanDue2024Member_bbb70005-2d29-405e-a1d9-230a4adbd9e5" xlink:href="wst-20200331.xsd#wst_TermLoanDue2024Member"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LongtermDebtTypeDomain_71d3ff8e-bc9a-4914-980e-42c25254b542" xlink:to="loc_wst_TermLoanDue2024Member_bbb70005-2d29-405e-a1d9-230a4adbd9e5" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CreditFacilityAxis_5d169696-fb0c-4ccd-b1f1-1dcfafde04a4" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_CreditFacilityAxis"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LineOfCreditFacilityTable_64cf2dfb-d455-4e99-8537-32c11a97412c" xlink:to="loc_us-gaap_CreditFacilityAxis_5d169696-fb0c-4ccd-b1f1-1dcfafde04a4" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CreditFacilityDomain_e85e4ba6-d3f6-4eac-847c-2a8754365ee1" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_CreditFacilityDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CreditFacilityAxis_5d169696-fb0c-4ccd-b1f1-1dcfafde04a4" xlink:to="loc_us-gaap_CreditFacilityDomain_e85e4ba6-d3f6-4eac-847c-2a8754365ee1" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LondonInterbankOfferedRateLIBORMember_d155e1fe-6ddb-4c6d-a072-c3bb7942f1cc" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LondonInterbankOfferedRateLIBORMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CreditFacilityDomain_e85e4ba6-d3f6-4eac-847c-2a8754365ee1" xlink:to="loc_us-gaap_LondonInterbankOfferedRateLIBORMember_d155e1fe-6ddb-4c6d-a072-c3bb7942f1cc" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FederalFundsEffectiveSwapRateMember_8fd6a636-50f4-42a5-af6f-a80add0c5669" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_FederalFundsEffectiveSwapRateMember"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CreditFacilityDomain_e85e4ba6-d3f6-4eac-847c-2a8754365ee1" xlink:to="loc_us-gaap_FederalFundsEffectiveSwapRateMember_8fd6a636-50f4-42a5-af6f-a80add0c5669" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BaseRateMember_3b8a8b84-9a03-491b-9d52-a9e67b9fe076" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_BaseRateMember"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CreditFacilityDomain_e85e4ba6-d3f6-4eac-847c-2a8754365ee1" xlink:to="loc_us-gaap_BaseRateMember_3b8a8b84-9a03-491b-9d52-a9e67b9fe076" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LetterOfCreditMember_d00f1bb4-b45f-4737-9507-ab9c95d0c62d" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LetterOfCreditMember"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CreditFacilityDomain_e85e4ba6-d3f6-4eac-847c-2a8754365ee1" xlink:to="loc_us-gaap_LetterOfCreditMember_d00f1bb4-b45f-4737-9507-ab9c95d0c62d" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LineOfCreditMember_3fb24eeb-251b-42e0-810d-3910fb1be7b3" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LineOfCreditMember"/>
    <link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CreditFacilityDomain_e85e4ba6-d3f6-4eac-847c-2a8754365ee1" xlink:to="loc_us-gaap_LineOfCreditMember_3fb24eeb-251b-42e0-810d-3910fb1be7b3" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ForeignLineOfCreditMember_df85def4-dfc0-4f8b-aafa-f024531ef042" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ForeignLineOfCreditMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LineOfCreditMember_3fb24eeb-251b-42e0-810d-3910fb1be7b3" xlink:to="loc_us-gaap_ForeignLineOfCreditMember_df85def4-dfc0-4f8b-aafa-f024531ef042" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DomesticLineOfCreditMember_6557767d-3468-4be8-acd8-ef5ed85c775f" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DomesticLineOfCreditMember"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LineOfCreditMember_3fb24eeb-251b-42e0-810d-3910fb1be7b3" xlink:to="loc_us-gaap_DomesticLineOfCreditMember_6557767d-3468-4be8-acd8-ef5ed85c775f" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LineOfCreditFacilityLineItems_a409ec40-ca39-44d9-ac7e-f1ab4cbd5f07" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LineOfCreditFacilityLineItems"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LineOfCreditFacilityTable_64cf2dfb-d455-4e99-8537-32c11a97412c" xlink:to="loc_us-gaap_LineOfCreditFacilityLineItems_a409ec40-ca39-44d9-ac7e-f1ab4cbd5f07" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LineOfCredit_43a1db50-bcfc-47bd-b9fd-b55d2eba1a4f" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LineOfCredit"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LineOfCreditFacilityLineItems_a409ec40-ca39-44d9-ac7e-f1ab4cbd5f07" xlink:to="loc_us-gaap_LineOfCredit_43a1db50-bcfc-47bd-b9fd-b55d2eba1a4f" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LineOfCreditFacilityCurrentBorrowingCapacity_a9663091-3986-4772-a947-479cdb975132" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LineOfCreditFacilityCurrentBorrowingCapacity"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LineOfCreditFacilityLineItems_a409ec40-ca39-44d9-ac7e-f1ab4cbd5f07" xlink:to="loc_us-gaap_LineOfCreditFacilityCurrentBorrowingCapacity_a9663091-3986-4772-a947-479cdb975132" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_wst_LineofCreditFacilityAdditionalBorrowingCapacity_f29323d3-c9af-490e-a859-fb2775544d7e" xlink:href="wst-20200331.xsd#wst_LineofCreditFacilityAdditionalBorrowingCapacity"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LineOfCreditFacilityLineItems_a409ec40-ca39-44d9-ac7e-f1ab4cbd5f07" xlink:to="loc_wst_LineofCreditFacilityAdditionalBorrowingCapacity_f29323d3-c9af-490e-a859-fb2775544d7e" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_wst_CreditFacilityIsAvailableForSwingLineLoans_cf157e38-ecd7-43f2-a906-5271682cdefb" xlink:href="wst-20200331.xsd#wst_CreditFacilityIsAvailableForSwingLineLoans"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LineOfCreditFacilityLineItems_a409ec40-ca39-44d9-ac7e-f1ab4cbd5f07" xlink:to="loc_wst_CreditFacilityIsAvailableForSwingLineLoans_cf157e38-ecd7-43f2-a906-5271682cdefb" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_wst_CreditAvailableForIssuanceOfLettersOfCredit_25715fe8-b10e-41cb-8869-16d2b8068548" xlink:href="wst-20200331.xsd#wst_CreditAvailableForIssuanceOfLettersOfCredit"/>
    <link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LineOfCreditFacilityLineItems_a409ec40-ca39-44d9-ac7e-f1ab4cbd5f07" xlink:to="loc_wst_CreditAvailableForIssuanceOfLettersOfCredit_25715fe8-b10e-41cb-8869-16d2b8068548" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermLineOfCredit_a38f2902-32ba-42bb-ab52-cbd96cbf0e39" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LongTermLineOfCredit"/>
    <link:presentationArc order="6" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LineOfCreditFacilityLineItems_a409ec40-ca39-44d9-ac7e-f1ab4cbd5f07" xlink:to="loc_us-gaap_LongTermLineOfCredit_a38f2902-32ba-42bb-ab52-cbd96cbf0e39" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_wst_LineOfCreditFacilityOutstandingBorrowingsYen_101e5775-6bb1-4b97-9667-2e9c73e8b3b5" xlink:href="wst-20200331.xsd#wst_LineOfCreditFacilityOutstandingBorrowingsYen"/>
    <link:presentationArc order="7" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LineOfCreditFacilityLineItems_a409ec40-ca39-44d9-ac7e-f1ab4cbd5f07" xlink:to="loc_wst_LineOfCreditFacilityOutstandingBorrowingsYen_101e5775-6bb1-4b97-9667-2e9c73e8b3b5" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_wst_LineOfCreditFacilityOutstandingBorrowingsEuro_2e714a51-1beb-47dd-8569-ff0722f58376" xlink:href="wst-20200331.xsd#wst_LineOfCreditFacilityOutstandingBorrowingsEuro"/>
    <link:presentationArc order="8" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LineOfCreditFacilityLineItems_a409ec40-ca39-44d9-ac7e-f1ab4cbd5f07" xlink:to="loc_wst_LineOfCreditFacilityOutstandingBorrowingsEuro_2e714a51-1beb-47dd-8569-ff0722f58376" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LineOfCreditFacilityRemainingBorrowingCapacity_9c8b019e-ab49-46a1-9699-eca65ebc3981" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LineOfCreditFacilityRemainingBorrowingCapacity"/>
    <link:presentationArc order="9" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LineOfCreditFacilityLineItems_a409ec40-ca39-44d9-ac7e-f1ab4cbd5f07" xlink:to="loc_us-gaap_LineOfCreditFacilityRemainingBorrowingCapacity_9c8b019e-ab49-46a1-9699-eca65ebc3981" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredFinanceCostsOwnshareLendingArrangementIssuanceCostsAdjustment_f624d88c-2c81-43e5-926d-55b72195848c" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DeferredFinanceCostsOwnshareLendingArrangementIssuanceCostsAdjustment"/>
    <link:presentationArc order="10" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LineOfCreditFacilityLineItems_a409ec40-ca39-44d9-ac7e-f1ab4cbd5f07" xlink:to="loc_us-gaap_DeferredFinanceCostsOwnshareLendingArrangementIssuanceCostsAdjustment_f624d88c-2c81-43e5-926d-55b72195848c" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LineOfCreditFacilityExpirationDate1_04e3c571-4b5c-4872-a0ec-b7ec65082195" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LineOfCreditFacilityExpirationDate1"/>
    <link:presentationArc order="11" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LineOfCreditFacilityLineItems_a409ec40-ca39-44d9-ac7e-f1ab4cbd5f07" xlink:to="loc_us-gaap_LineOfCreditFacilityExpirationDate1_04e3c571-4b5c-4872-a0ec-b7ec65082195" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentBasisSpreadOnVariableRate1_b74b1ccb-f321-43b2-9690-6530f4e57332" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DebtInstrumentBasisSpreadOnVariableRate1"/>
    <link:presentationArc order="12" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LineOfCreditFacilityLineItems_a409ec40-ca39-44d9-ac7e-f1ab4cbd5f07" xlink:to="loc_us-gaap_DebtInstrumentBasisSpreadOnVariableRate1_b74b1ccb-f321-43b2-9690-6530f4e57332" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentCarryingAmount_2217bc35-32bd-42c5-a2da-ce2e7e0083f8" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DebtInstrumentCarryingAmount"/>
    <link:presentationArc order="13" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LineOfCreditFacilityLineItems_a409ec40-ca39-44d9-ac7e-f1ab4cbd5f07" xlink:to="loc_us-gaap_DebtInstrumentCarryingAmount_2217bc35-32bd-42c5-a2da-ce2e7e0083f8" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtCurrent_bf3ad35c-433b-42ab-9b79-3ca8d0c210b0" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DebtCurrent"/>
    <link:presentationArc order="14" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LineOfCreditFacilityLineItems_a409ec40-ca39-44d9-ac7e-f1ab4cbd5f07" xlink:to="loc_us-gaap_DebtCurrent_bf3ad35c-433b-42ab-9b79-3ca8d0c210b0" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermDebtNoncurrent_8ee20f37-3891-45e2-b6a8-ced4e2e6d20b" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LongTermDebtNoncurrent"/>
    <link:presentationArc order="15" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LineOfCreditFacilityLineItems_a409ec40-ca39-44d9-ac7e-f1ab4cbd5f07" xlink:to="loc_us-gaap_LongTermDebtNoncurrent_8ee20f37-3891-45e2-b6a8-ced4e2e6d20b" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.westpharma.com/role/DerivativeFinancialInstruments" xlink:type="simple" xlink:href="wst-20200331.xsd#DerivativeFinancialInstruments"/>
  <link:presentationLink xlink:role="http://www.westpharma.com/role/DerivativeFinancialInstruments" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeInstrumentsAndHedgingActivitiesDisclosureAbstract_28f539c1-ff1e-452c-bf23-bd908ee22e6b" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DerivativeInstrumentsAndHedgingActivitiesDisclosureAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeInstrumentsAndHedgingActivitiesDisclosureTextBlock_71f8989f-4999-4d99-be18-8cee2fa4baa8" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DerivativeInstrumentsAndHedgingActivitiesDisclosureTextBlock"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DerivativeInstrumentsAndHedgingActivitiesDisclosureAbstract_28f539c1-ff1e-452c-bf23-bd908ee22e6b" xlink:to="loc_us-gaap_DerivativeInstrumentsAndHedgingActivitiesDisclosureTextBlock_71f8989f-4999-4d99-be18-8cee2fa4baa8" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.westpharma.com/role/DerivativeFinancialInstrumentsTables" xlink:type="simple" xlink:href="wst-20200331.xsd#DerivativeFinancialInstrumentsTables"/>
  <link:presentationLink xlink:role="http://www.westpharma.com/role/DerivativeFinancialInstrumentsTables" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeInstrumentsAndHedgingActivitiesDisclosureAbstract_bf2d67bd-12da-4d14-8630-0e7c84443640" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DerivativeInstrumentsAndHedgingActivitiesDisclosureAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfDerivativeInstrumentsTextBlock_44fffc41-b3aa-4117-b6bb-f762c1bcb34c" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ScheduleOfDerivativeInstrumentsTextBlock"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DerivativeInstrumentsAndHedgingActivitiesDisclosureAbstract_bf2d67bd-12da-4d14-8630-0e7c84443640" xlink:to="loc_us-gaap_ScheduleOfDerivativeInstrumentsTextBlock_44fffc41-b3aa-4117-b6bb-f762c1bcb34c" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfDerivativeInstrumentsGainLossInStatementOfFinancialPerformanceTextBlock_80b44505-feef-4ce2-893c-ac7ecefb12fd" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ScheduleOfDerivativeInstrumentsGainLossInStatementOfFinancialPerformanceTextBlock"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DerivativeInstrumentsAndHedgingActivitiesDisclosureAbstract_bf2d67bd-12da-4d14-8630-0e7c84443640" xlink:to="loc_us-gaap_ScheduleOfDerivativeInstrumentsGainLossInStatementOfFinancialPerformanceTextBlock_80b44505-feef-4ce2-893c-ac7ecefb12fd" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.westpharma.com/role/DerivativeFinancialInstrumentsTextualsDetails" xlink:type="simple" xlink:href="wst-20200331.xsd#DerivativeFinancialInstrumentsTextualsDetails"/>
  <link:presentationLink xlink:role="http://www.westpharma.com/role/DerivativeFinancialInstrumentsTextualsDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeInstrumentsAndHedgingActivitiesDisclosureAbstract_28a6feb1-ae2a-43e2-82a7-5f3083fd166e" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DerivativeInstrumentsAndHedgingActivitiesDisclosureAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeTable_0b4321bf-a91b-435b-acb5-353f528d0aed" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DerivativeTable"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DerivativeInstrumentsAndHedgingActivitiesDisclosureAbstract_28a6feb1-ae2a-43e2-82a7-5f3083fd166e" xlink:to="loc_us-gaap_DerivativeTable_0b4321bf-a91b-435b-acb5-353f528d0aed" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PositionAxis_a2b19051-3089-4c62-9852-fdb9bdf45b01" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_PositionAxis"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DerivativeTable_0b4321bf-a91b-435b-acb5-353f528d0aed" xlink:to="loc_us-gaap_PositionAxis_a2b19051-3089-4c62-9852-fdb9bdf45b01" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PositionDomain_8845ffae-b4ac-43df-bc23-ca07cd6edc0f" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_PositionDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PositionAxis_a2b19051-3089-4c62-9852-fdb9bdf45b01" xlink:to="loc_us-gaap_PositionDomain_8845ffae-b4ac-43df-bc23-ca07cd6edc0f" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongMember_3f874ca6-9c36-4406-aacd-9851d7d5f535" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LongMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PositionDomain_8845ffae-b4ac-43df-bc23-ca07cd6edc0f" xlink:to="loc_us-gaap_LongMember_3f874ca6-9c36-4406-aacd-9851d7d5f535" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShortMember_22fc1545-0f7e-47ea-a5f2-14419c052b56" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ShortMember"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_PositionDomain_8845ffae-b4ac-43df-bc23-ca07cd6edc0f" xlink:to="loc_us-gaap_ShortMember_22fc1545-0f7e-47ea-a5f2-14419c052b56" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_HedgingDesignationAxis_01f0ffd2-5cbb-4cda-b13b-f0da0ad5621d" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_HedgingDesignationAxis"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DerivativeTable_0b4321bf-a91b-435b-acb5-353f528d0aed" xlink:to="loc_us-gaap_HedgingDesignationAxis_01f0ffd2-5cbb-4cda-b13b-f0da0ad5621d" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_HedgingDesignationDomain_2667a80d-8aca-4e73-ad6d-a19763d92480" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_HedgingDesignationDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_HedgingDesignationAxis_01f0ffd2-5cbb-4cda-b13b-f0da0ad5621d" xlink:to="loc_us-gaap_HedgingDesignationDomain_2667a80d-8aca-4e73-ad6d-a19763d92480" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DesignatedAsHedgingInstrumentMember_053fcf80-471e-4d54-864e-142a39d4d831" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DesignatedAsHedgingInstrumentMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_HedgingDesignationDomain_2667a80d-8aca-4e73-ad6d-a19763d92480" xlink:to="loc_us-gaap_DesignatedAsHedgingInstrumentMember_053fcf80-471e-4d54-864e-142a39d4d831" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_CurrencyAxis_6429b510-2d0d-4331-8192-1f4cc39ba81f" xlink:href="http://xbrl.fasb.org/srt/2019/elts/srt-2019-01-31.xsd#srt_CurrencyAxis"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DerivativeTable_0b4321bf-a91b-435b-acb5-353f528d0aed" xlink:to="loc_srt_CurrencyAxis_6429b510-2d0d-4331-8192-1f4cc39ba81f" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_currency_AllCurrenciesDomain_b73a425d-88d2-470b-9710-7aea539d7d4b" xlink:href="https://xbrl.sec.gov/currency/2019/currency-2019-01-31.xsd#currency_AllCurrenciesDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_srt_CurrencyAxis_6429b510-2d0d-4331-8192-1f4cc39ba81f" xlink:to="loc_currency_AllCurrenciesDomain_b73a425d-88d2-470b-9710-7aea539d7d4b" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_currency_EUR_790164ab-c040-4445-a445-88da1b9ef1f2" xlink:href="https://xbrl.sec.gov/currency/2019/currency-2019-01-31.xsd#currency_EUR"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_currency_AllCurrenciesDomain_b73a425d-88d2-470b-9710-7aea539d7d4b" xlink:to="loc_currency_EUR_790164ab-c040-4445-a445-88da1b9ef1f2" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_currency_SGD_a919769f-30f3-4e5f-a9e4-9089ff24dcc1" xlink:href="https://xbrl.sec.gov/currency/2019/currency-2019-01-31.xsd#currency_SGD"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_currency_AllCurrenciesDomain_b73a425d-88d2-470b-9710-7aea539d7d4b" xlink:to="loc_currency_SGD_a919769f-30f3-4e5f-a9e4-9089ff24dcc1" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_currency_USD_de22d5ea-d8e9-4953-b2cf-b96699b0cd6e" xlink:href="https://xbrl.sec.gov/currency/2019/currency-2019-01-31.xsd#currency_USD"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_currency_AllCurrenciesDomain_b73a425d-88d2-470b-9710-7aea539d7d4b" xlink:to="loc_currency_USD_de22d5ea-d8e9-4953-b2cf-b96699b0cd6e" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_currency_JPY_2e05bfec-41b6-4a32-9666-f5cd2805a392" xlink:href="https://xbrl.sec.gov/currency/2019/currency-2019-01-31.xsd#currency_JPY"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_currency_AllCurrenciesDomain_b73a425d-88d2-470b-9710-7aea539d7d4b" xlink:to="loc_currency_JPY_2e05bfec-41b6-4a32-9666-f5cd2805a392" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipAxis_0e6f0db3-f876-4db0-8541-52818bfaedd7" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipAxis"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DerivativeTable_0b4321bf-a91b-435b-acb5-353f528d0aed" xlink:to="loc_us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipAxis_0e6f0db3-f876-4db0-8541-52818bfaedd7" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_HedgingRelationshipDomain_9414af82-a807-4f15-a70e-667e59eba3ea" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_HedgingRelationshipDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipAxis_0e6f0db3-f876-4db0-8541-52818bfaedd7" xlink:to="loc_us-gaap_HedgingRelationshipDomain_9414af82-a807-4f15-a70e-667e59eba3ea" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashFlowHedgingMember_60252014-baa0-4421-abfd-c704268137ce" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_CashFlowHedgingMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_HedgingRelationshipDomain_9414af82-a807-4f15-a70e-667e59eba3ea" xlink:to="loc_us-gaap_CashFlowHedgingMember_60252014-baa0-4421-abfd-c704268137ce" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetInvestmentHedgingMember_7947d64a-454e-4b62-ba82-efc0bf3eb0d4" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_NetInvestmentHedgingMember"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_HedgingRelationshipDomain_9414af82-a807-4f15-a70e-667e59eba3ea" xlink:to="loc_us-gaap_NetInvestmentHedgingMember_7947d64a-454e-4b62-ba82-efc0bf3eb0d4" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeInstrumentRiskAxis_d3fb5b93-d6c5-4de4-b196-8095c6ac95d8" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DerivativeInstrumentRiskAxis"/>
    <link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DerivativeTable_0b4321bf-a91b-435b-acb5-353f528d0aed" xlink:to="loc_us-gaap_DerivativeInstrumentRiskAxis_d3fb5b93-d6c5-4de4-b196-8095c6ac95d8" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeContractTypeDomain_0d0420d8-5fbb-4a41-836a-e6182af7cf02" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DerivativeContractTypeDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DerivativeInstrumentRiskAxis_d3fb5b93-d6c5-4de4-b196-8095c6ac95d8" xlink:to="loc_us-gaap_DerivativeContractTypeDomain_0d0420d8-5fbb-4a41-836a-e6182af7cf02" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ForeignExchangeForwardMember_d0c87c3c-ae91-4d3d-8675-0c87715ba496" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ForeignExchangeForwardMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DerivativeContractTypeDomain_0d0420d8-5fbb-4a41-836a-e6182af7cf02" xlink:to="loc_us-gaap_ForeignExchangeForwardMember_d0c87c3c-ae91-4d3d-8675-0c87715ba496" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ForeignExchangeContractMember_e8b4d698-2562-47c9-8d23-588497fa3202" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ForeignExchangeContractMember"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DerivativeContractTypeDomain_0d0420d8-5fbb-4a41-836a-e6182af7cf02" xlink:to="loc_us-gaap_ForeignExchangeContractMember_e8b4d698-2562-47c9-8d23-588497fa3202" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TreasuryLockMember_33189bf5-cf2e-45b6-a327-9d892dcfaedb" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_TreasuryLockMember"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DerivativeContractTypeDomain_0d0420d8-5fbb-4a41-836a-e6182af7cf02" xlink:to="loc_us-gaap_TreasuryLockMember_33189bf5-cf2e-45b6-a327-9d892dcfaedb" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InterestRateSwapMember_f92bd40f-6c5a-41fb-a853-4c81b3a17cef" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_InterestRateSwapMember"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DerivativeContractTypeDomain_0d0420d8-5fbb-4a41-836a-e6182af7cf02" xlink:to="loc_us-gaap_InterestRateSwapMember_f92bd40f-6c5a-41fb-a853-4c81b3a17cef" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_wst_ForeignCurrencyDenominatedDebtMember_fd7ee6a8-e34f-48e2-b484-e5f71697c0f6" xlink:href="wst-20200331.xsd#wst_ForeignCurrencyDenominatedDebtMember"/>
    <link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DerivativeContractTypeDomain_0d0420d8-5fbb-4a41-836a-e6182af7cf02" xlink:to="loc_wst_ForeignCurrencyDenominatedDebtMember_fd7ee6a8-e34f-48e2-b484-e5f71697c0f6" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ForwardContractsMember_8745e453-3e38-4a99-b059-1681c1f58194" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ForwardContractsMember"/>
    <link:presentationArc order="6" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DerivativeContractTypeDomain_0d0420d8-5fbb-4a41-836a-e6182af7cf02" xlink:to="loc_us-gaap_ForwardContractsMember_8745e453-3e38-4a99-b059-1681c1f58194" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtMember_5b300412-9d32-44ad-a06e-73f8aa69d433" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DebtMember"/>
    <link:presentationArc order="7" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DerivativeContractTypeDomain_0d0420d8-5fbb-4a41-836a-e6182af7cf02" xlink:to="loc_us-gaap_DebtMember_5b300412-9d32-44ad-a06e-73f8aa69d433" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_wst_DebtYenDenominatedMember_1d85851f-27ab-49aa-8130-b4b752e6c792" xlink:href="wst-20200331.xsd#wst_DebtYenDenominatedMember"/>
    <link:presentationArc order="8" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DerivativeContractTypeDomain_0d0420d8-5fbb-4a41-836a-e6182af7cf02" xlink:to="loc_wst_DebtYenDenominatedMember_1d85851f-27ab-49aa-8130-b4b752e6c792" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OptionMember_e3d4f88d-fa82-4684-bfcc-f59e4b53332d" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_OptionMember"/>
    <link:presentationArc order="9" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DerivativeContractTypeDomain_0d0420d8-5fbb-4a41-836a-e6182af7cf02" xlink:to="loc_us-gaap_OptionMember_e3d4f88d-fa82-4684-bfcc-f59e4b53332d" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CrossCurrencyInterestRateContractMember_40083d2b-04af-481d-9b42-d0e6a37d6ebd" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_CrossCurrencyInterestRateContractMember"/>
    <link:presentationArc order="10" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DerivativeContractTypeDomain_0d0420d8-5fbb-4a41-836a-e6182af7cf02" xlink:to="loc_us-gaap_CrossCurrencyInterestRateContractMember_40083d2b-04af-481d-9b42-d0e6a37d6ebd" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeStatementLocationAxis_c04a2e9c-7e17-4ebb-9c0c-a6a621aff945" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_IncomeStatementLocationAxis"/>
    <link:presentationArc order="6" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DerivativeTable_0b4321bf-a91b-435b-acb5-353f528d0aed" xlink:to="loc_us-gaap_IncomeStatementLocationAxis_c04a2e9c-7e17-4ebb-9c0c-a6a621aff945" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeStatementLocationDomain_ae9528c7-8e62-4762-b83e-c2b961ae43e1" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_IncomeStatementLocationDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeStatementLocationAxis_c04a2e9c-7e17-4ebb-9c0c-a6a621aff945" xlink:to="loc_us-gaap_IncomeStatementLocationDomain_ae9528c7-8e62-4762-b83e-c2b961ae43e1" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_wst_NetSalesMember_b5ecab45-cf76-4f74-ace7-033ac599dcd7" xlink:href="wst-20200331.xsd#wst_NetSalesMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeStatementLocationDomain_ae9528c7-8e62-4762-b83e-c2b961ae43e1" xlink:to="loc_wst_NetSalesMember_b5ecab45-cf76-4f74-ace7-033ac599dcd7" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InterestExpenseMember_4c124cc9-6ee9-4eec-b257-8f8b43d03d17" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_InterestExpenseMember"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeStatementLocationDomain_ae9528c7-8e62-4762-b83e-c2b961ae43e1" xlink:to="loc_us-gaap_InterestExpenseMember_4c124cc9-6ee9-4eec-b257-8f8b43d03d17" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CostOfSalesMember_9ab4a407-d554-42e7-a6c6-9bd0f7a7056d" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_CostOfSalesMember"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeStatementLocationDomain_ae9528c7-8e62-4762-b83e-c2b961ae43e1" xlink:to="loc_us-gaap_CostOfSalesMember_9ab4a407-d554-42e7-a6c6-9bd0f7a7056d" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ForeignCurrencyGainLossMember_641139c4-8a4e-46ee-ba68-0289d966044a" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ForeignCurrencyGainLossMember"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeStatementLocationDomain_ae9528c7-8e62-4762-b83e-c2b961ae43e1" xlink:to="loc_us-gaap_ForeignCurrencyGainLossMember_641139c4-8a4e-46ee-ba68-0289d966044a" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeLineItems_95dd2e0c-b0d5-4753-be3c-8d27aff30b11" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DerivativeLineItems"/>
    <link:presentationArc order="7" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DerivativeTable_0b4321bf-a91b-435b-acb5-353f528d0aed" xlink:to="loc_us-gaap_DerivativeLineItems_95dd2e0c-b0d5-4753-be3c-8d27aff30b11" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeUnderlyingBasis_33b3d16f-cde5-44ec-b8a8-133793394004" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DerivativeUnderlyingBasis"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DerivativeLineItems_95dd2e0c-b0d5-4753-be3c-8d27aff30b11" xlink:to="loc_us-gaap_DerivativeUnderlyingBasis_33b3d16f-cde5-44ec-b8a8-133793394004" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NotionalAmountOfNonderivativeInstruments_7fe6b49b-5290-4aa9-8920-4569f469126f" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_NotionalAmountOfNonderivativeInstruments"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DerivativeLineItems_95dd2e0c-b0d5-4753-be3c-8d27aff30b11" xlink:to="loc_us-gaap_NotionalAmountOfNonderivativeInstruments_7fe6b49b-5290-4aa9-8920-4569f469126f" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_wst_TranslationAdjustmentForNetInvestmentHedgePreTax_cb448a3a-f05e-470d-8c12-982c04453179" xlink:href="wst-20200331.xsd#wst_TranslationAdjustmentForNetInvestmentHedgePreTax"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DerivativeLineItems_95dd2e0c-b0d5-4753-be3c-8d27aff30b11" xlink:to="loc_wst_TranslationAdjustmentForNetInvestmentHedgePreTax_cb448a3a-f05e-470d-8c12-982c04453179" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TranslationAdjustmentForNetInvestmentHedgeNetOfTax_d74b251f-feb2-44ae-87a4-34c9950e6c5d" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_TranslationAdjustmentForNetInvestmentHedgeNetOfTax"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DerivativeLineItems_95dd2e0c-b0d5-4753-be3c-8d27aff30b11" xlink:to="loc_us-gaap_TranslationAdjustmentForNetInvestmentHedgeNetOfTax_d74b251f-feb2-44ae-87a4-34c9950e6c5d" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeNonmonetaryNotionalAmount_42eb7355-3674-4b7e-9fc1-0c35eb160c13" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DerivativeNonmonetaryNotionalAmount"/>
    <link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DerivativeLineItems_95dd2e0c-b0d5-4753-be3c-8d27aff30b11" xlink:to="loc_us-gaap_DerivativeNonmonetaryNotionalAmount_42eb7355-3674-4b7e-9fc1-0c35eb160c13" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeCostOfHedge_b5750683-2ff7-4c72-8342-d0a7432b6bbf" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DerivativeCostOfHedge"/>
    <link:presentationArc order="6" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DerivativeLineItems_95dd2e0c-b0d5-4753-be3c-8d27aff30b11" xlink:to="loc_us-gaap_DerivativeCostOfHedge_b5750683-2ff7-4c72-8342-d0a7432b6bbf" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GainLossOnPriceRiskDerivativeInstrumentsNotDesignatedAsHedgingInstruments_48e30123-5f2c-4069-8fe8-26b0fa1e7bfd" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_GainLossOnPriceRiskDerivativeInstrumentsNotDesignatedAsHedgingInstruments"/>
    <link:presentationArc order="7" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DerivativeLineItems_95dd2e0c-b0d5-4753-be3c-8d27aff30b11" xlink:to="loc_us-gaap_GainLossOnPriceRiskDerivativeInstrumentsNotDesignatedAsHedgingInstruments_48e30123-5f2c-4069-8fe8-26b0fa1e7bfd" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeAveragePriceRiskOptionStrikePrice_a6005e89-bd38-408a-aedf-024f6adbcf20" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DerivativeAveragePriceRiskOptionStrikePrice"/>
    <link:presentationArc order="8" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DerivativeLineItems_95dd2e0c-b0d5-4753-be3c-8d27aff30b11" xlink:to="loc_us-gaap_DerivativeAveragePriceRiskOptionStrikePrice_a6005e89-bd38-408a-aedf-024f6adbcf20" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GainLossOnForeignCurrencyFairValueHedgeDerivatives_4496efa3-d77d-40f6-9ebd-07f60b7d02f7" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_GainLossOnForeignCurrencyFairValueHedgeDerivatives"/>
    <link:presentationArc order="9" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DerivativeLineItems_95dd2e0c-b0d5-4753-be3c-8d27aff30b11" xlink:to="loc_us-gaap_GainLossOnForeignCurrencyFairValueHedgeDerivatives_4496efa3-d77d-40f6-9ebd-07f60b7d02f7" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeNotionalAmount_6da55f23-74b6-4232-a336-9eddf780ff95" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DerivativeNotionalAmount"/>
    <link:presentationArc order="10" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DerivativeLineItems_95dd2e0c-b0d5-4753-be3c-8d27aff30b11" xlink:to="loc_us-gaap_DerivativeNotionalAmount_6da55f23-74b6-4232-a336-9eddf780ff95" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeNonmonetaryNotionalAmountVolume_5bc24ce3-6cbe-4a57-9b51-1bc70f7de87d" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DerivativeNonmonetaryNotionalAmountVolume"/>
    <link:presentationArc order="11" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DerivativeLineItems_95dd2e0c-b0d5-4753-be3c-8d27aff30b11" xlink:to="loc_us-gaap_DerivativeNonmonetaryNotionalAmountVolume_5bc24ce3-6cbe-4a57-9b51-1bc70f7de87d" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.westpharma.com/role/EffectsofDerivativeInstrumentsonOCIandEarningsDetails" xlink:type="simple" xlink:href="wst-20200331.xsd#EffectsofDerivativeInstrumentsonOCIandEarningsDetails"/>
  <link:presentationLink xlink:role="http://www.westpharma.com/role/EffectsofDerivativeInstrumentsonOCIandEarningsDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeInstrumentsAndHedgingActivitiesDisclosureAbstract_a42527ad-b1b6-4798-bc9b-9941d790644b" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DerivativeInstrumentsAndHedgingActivitiesDisclosureAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipByIncomeStatementLocationByDerivativeInstrumentRiskTable_ba31e61f-cc1f-4407-9792-9ae7c643f980" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipByIncomeStatementLocationByDerivativeInstrumentRiskTable"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DerivativeInstrumentsAndHedgingActivitiesDisclosureAbstract_a42527ad-b1b6-4798-bc9b-9941d790644b" xlink:to="loc_us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipByIncomeStatementLocationByDerivativeInstrumentRiskTable_ba31e61f-cc1f-4407-9792-9ae7c643f980" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeInstrumentRiskAxis_e0c54f78-b209-48bb-a1f8-8fcc2f2518e4" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DerivativeInstrumentRiskAxis"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipByIncomeStatementLocationByDerivativeInstrumentRiskTable_ba31e61f-cc1f-4407-9792-9ae7c643f980" xlink:to="loc_us-gaap_DerivativeInstrumentRiskAxis_e0c54f78-b209-48bb-a1f8-8fcc2f2518e4" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeContractTypeDomain_a1773a37-1b45-4dd3-b8b1-8972d90d58f3" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DerivativeContractTypeDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DerivativeInstrumentRiskAxis_e0c54f78-b209-48bb-a1f8-8fcc2f2518e4" xlink:to="loc_us-gaap_DerivativeContractTypeDomain_a1773a37-1b45-4dd3-b8b1-8972d90d58f3" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ForeignExchangeContractMember_1916f1c0-1e1d-4e92-b26c-068244df858d" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ForeignExchangeContractMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DerivativeContractTypeDomain_a1773a37-1b45-4dd3-b8b1-8972d90d58f3" xlink:to="loc_us-gaap_ForeignExchangeContractMember_1916f1c0-1e1d-4e92-b26c-068244df858d" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommodityOptionMember_1daa7c9d-41ae-4b09-b7ae-6d1e6ea79f44" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_CommodityOptionMember"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DerivativeContractTypeDomain_a1773a37-1b45-4dd3-b8b1-8972d90d58f3" xlink:to="loc_us-gaap_CommodityOptionMember_1daa7c9d-41ae-4b09-b7ae-6d1e6ea79f44" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InterestRateSwapMember_d1f31208-a325-4075-82ed-9ad8b5800729" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_InterestRateSwapMember"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DerivativeContractTypeDomain_a1773a37-1b45-4dd3-b8b1-8972d90d58f3" xlink:to="loc_us-gaap_InterestRateSwapMember_d1f31208-a325-4075-82ed-9ad8b5800729" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TreasuryLockMember_04be566e-616f-4380-b57e-aa9418da953e" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_TreasuryLockMember"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DerivativeContractTypeDomain_a1773a37-1b45-4dd3-b8b1-8972d90d58f3" xlink:to="loc_us-gaap_TreasuryLockMember_04be566e-616f-4380-b57e-aa9418da953e" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_wst_ForeignCurrencyDenominatedDebtMember_0a29d475-10a5-4e67-be05-288d9b216a99" xlink:href="wst-20200331.xsd#wst_ForeignCurrencyDenominatedDebtMember"/>
    <link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DerivativeContractTypeDomain_a1773a37-1b45-4dd3-b8b1-8972d90d58f3" xlink:to="loc_wst_ForeignCurrencyDenominatedDebtMember_0a29d475-10a5-4e67-be05-288d9b216a99" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CurrencySwapMember_c5442b58-fd58-4b73-9ae2-a71bce502320" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_CurrencySwapMember"/>
    <link:presentationArc order="6" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DerivativeContractTypeDomain_a1773a37-1b45-4dd3-b8b1-8972d90d58f3" xlink:to="loc_us-gaap_CurrencySwapMember_c5442b58-fd58-4b73-9ae2-a71bce502320" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeStatementLocationAxis_f4bf66ac-24ed-4212-9aab-f526849a9d8b" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_IncomeStatementLocationAxis"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipByIncomeStatementLocationByDerivativeInstrumentRiskTable_ba31e61f-cc1f-4407-9792-9ae7c643f980" xlink:to="loc_us-gaap_IncomeStatementLocationAxis_f4bf66ac-24ed-4212-9aab-f526849a9d8b" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeStatementLocationDomain_b4a1788e-dd5c-4ee9-80ea-c53725eaba64" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_IncomeStatementLocationDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeStatementLocationAxis_f4bf66ac-24ed-4212-9aab-f526849a9d8b" xlink:to="loc_us-gaap_IncomeStatementLocationDomain_b4a1788e-dd5c-4ee9-80ea-c53725eaba64" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_wst_NetSalesMember_1559829f-52ac-42a5-a4d1-102ad3909562" xlink:href="wst-20200331.xsd#wst_NetSalesMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeStatementLocationDomain_b4a1788e-dd5c-4ee9-80ea-c53725eaba64" xlink:to="loc_wst_NetSalesMember_1559829f-52ac-42a5-a4d1-102ad3909562" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CostOfSalesMember_d5406e92-f11e-41d8-a3f6-2754bf298d67" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_CostOfSalesMember"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeStatementLocationDomain_b4a1788e-dd5c-4ee9-80ea-c53725eaba64" xlink:to="loc_us-gaap_CostOfSalesMember_d5406e92-f11e-41d8-a3f6-2754bf298d67" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InterestExpenseMember_bac8c07d-7ba0-446e-b26c-35a3510c57fa" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_InterestExpenseMember"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeStatementLocationDomain_b4a1788e-dd5c-4ee9-80ea-c53725eaba64" xlink:to="loc_us-gaap_InterestExpenseMember_bac8c07d-7ba0-446e-b26c-35a3510c57fa" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ForeignCurrencyGainLossMember_3bc92de4-b2fa-42c9-8269-9d9b81c5e912" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ForeignCurrencyGainLossMember"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeStatementLocationDomain_b4a1788e-dd5c-4ee9-80ea-c53725eaba64" xlink:to="loc_us-gaap_ForeignCurrencyGainLossMember_3bc92de4-b2fa-42c9-8269-9d9b81c5e912" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipAxis_b60453ca-6058-42b7-8b69-1aafe2fd625f" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipAxis"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipByIncomeStatementLocationByDerivativeInstrumentRiskTable_ba31e61f-cc1f-4407-9792-9ae7c643f980" xlink:to="loc_us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipAxis_b60453ca-6058-42b7-8b69-1aafe2fd625f" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_HedgingRelationshipDomain_d1a49250-0d18-4f1b-9b7c-6b8c5cbd9f85" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_HedgingRelationshipDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipAxis_b60453ca-6058-42b7-8b69-1aafe2fd625f" xlink:to="loc_us-gaap_HedgingRelationshipDomain_d1a49250-0d18-4f1b-9b7c-6b8c5cbd9f85" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueHedgingMember_d0e22dd6-b48d-4a8d-a6e9-1e581ee27cbf" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_FairValueHedgingMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_HedgingRelationshipDomain_d1a49250-0d18-4f1b-9b7c-6b8c5cbd9f85" xlink:to="loc_us-gaap_FairValueHedgingMember_d0e22dd6-b48d-4a8d-a6e9-1e581ee27cbf" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashFlowHedgingMember_76625c8e-1deb-4027-b715-455323c360fc" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_CashFlowHedgingMember"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_HedgingRelationshipDomain_d1a49250-0d18-4f1b-9b7c-6b8c5cbd9f85" xlink:to="loc_us-gaap_CashFlowHedgingMember_76625c8e-1deb-4027-b715-455323c360fc" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NondesignatedMember_e79d6955-7559-470a-9aeb-a381e55920c4" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_NondesignatedMember"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_HedgingRelationshipDomain_d1a49250-0d18-4f1b-9b7c-6b8c5cbd9f85" xlink:to="loc_us-gaap_NondesignatedMember_e79d6955-7559-470a-9aeb-a381e55920c4" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetInvestmentHedgingMember_fe2b3b40-a982-429b-8f80-2ed8fa927dac" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_NetInvestmentHedgingMember"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_HedgingRelationshipDomain_d1a49250-0d18-4f1b-9b7c-6b8c5cbd9f85" xlink:to="loc_us-gaap_NetInvestmentHedgingMember_fe2b3b40-a982-429b-8f80-2ed8fa927dac" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeInstrumentsGainLossLineItems_949c0d4d-3d81-49f4-a37c-1edc60d56c96" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DerivativeInstrumentsGainLossLineItems"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipByIncomeStatementLocationByDerivativeInstrumentRiskTable_ba31e61f-cc1f-4407-9792-9ae7c643f980" xlink:to="loc_us-gaap_DerivativeInstrumentsGainLossLineItems_949c0d4d-3d81-49f4-a37c-1edc60d56c96" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodBeforeTax_6282e645-2572-4174-9e0d-66bfce66f844" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodBeforeTax"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DerivativeInstrumentsGainLossLineItems_949c0d4d-3d81-49f4-a37c-1edc60d56c96" xlink:to="loc_us-gaap_OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodBeforeTax_6282e645-2572-4174-9e0d-66bfce66f844" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsGainLossNet_d9b6b3f5-6a25-4de3-bfd0-578b3e1d0a6d" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsGainLossNet"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DerivativeInstrumentsGainLossLineItems_949c0d4d-3d81-49f4-a37c-1edc60d56c96" xlink:to="loc_us-gaap_DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsGainLossNet_d9b6b3f5-6a25-4de3-bfd0-578b3e1d0a6d" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeGainLossOnDerivativeNet_7f3c47c9-4b4b-4adf-ba60-f4eaefd72789" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DerivativeGainLossOnDerivativeNet"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DerivativeInstrumentsGainLossLineItems_949c0d4d-3d81-49f4-a37c-1edc60d56c96" xlink:to="loc_us-gaap_DerivativeGainLossOnDerivativeNet_7f3c47c9-4b4b-4adf-ba60-f4eaefd72789" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeInstrumentsGainLossReclassifiedFromAccumulatedOCIIntoIncomeEffectivePortionNet_969320e3-a4d0-41a7-b1bd-38f7414be53e" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DerivativeInstrumentsGainLossReclassifiedFromAccumulatedOCIIntoIncomeEffectivePortionNet"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DerivativeInstrumentsGainLossLineItems_949c0d4d-3d81-49f4-a37c-1edc60d56c96" xlink:to="loc_us-gaap_DerivativeInstrumentsGainLossReclassifiedFromAccumulatedOCIIntoIncomeEffectivePortionNet_969320e3-a4d0-41a7-b1bd-38f7414be53e" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeExcludedComponentGainLossRecognizedInEarnings_c931fb02-8992-4aba-b547-cdf9a40137da" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DerivativeExcludedComponentGainLossRecognizedInEarnings"/>
    <link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DerivativeInstrumentsGainLossLineItems_949c0d4d-3d81-49f4-a37c-1edc60d56c96" xlink:to="loc_us-gaap_DerivativeExcludedComponentGainLossRecognizedInEarnings_c931fb02-8992-4aba-b547-cdf9a40137da" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GainLossOnDerivativeInstrumentsNetPretax_9829e8d5-7d35-41a6-8b95-b9de05fe9a21" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_GainLossOnDerivativeInstrumentsNetPretax"/>
    <link:presentationArc order="6" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DerivativeInstrumentsGainLossLineItems_949c0d4d-3d81-49f4-a37c-1edc60d56c96" xlink:to="loc_us-gaap_GainLossOnDerivativeInstrumentsNetPretax_9829e8d5-7d35-41a6-8b95-b9de05fe9a21" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.westpharma.com/role/FairValueMeasurements" xlink:type="simple" xlink:href="wst-20200331.xsd#FairValueMeasurements"/>
  <link:presentationLink xlink:role="http://www.westpharma.com/role/FairValueMeasurements" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueDisclosuresAbstract_81c85fef-6ae0-4b8f-ab3d-628beb2441bd" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_FairValueDisclosuresAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueDisclosuresTextBlock_93c762c3-ab8d-43a7-9bed-39aacc4b9d6c" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_FairValueDisclosuresTextBlock"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueDisclosuresAbstract_81c85fef-6ae0-4b8f-ab3d-628beb2441bd" xlink:to="loc_us-gaap_FairValueDisclosuresTextBlock_93c762c3-ab8d-43a7-9bed-39aacc4b9d6c" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.westpharma.com/role/FairValueMeasurementsTables" xlink:type="simple" xlink:href="wst-20200331.xsd#FairValueMeasurementsTables"/>
  <link:presentationLink xlink:role="http://www.westpharma.com/role/FairValueMeasurementsTables" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueDisclosuresAbstract_f6d0599f-e807-4b31-9bc9-c0451286afaa" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_FairValueDisclosuresAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfFairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisTableTextBlock_a1474266-cf55-423d-80e6-73e3cc7a6819" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ScheduleOfFairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisTableTextBlock"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueDisclosuresAbstract_f6d0599f-e807-4b31-9bc9-c0451286afaa" xlink:to="loc_us-gaap_ScheduleOfFairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisTableTextBlock_a1474266-cf55-423d-80e6-73e3cc7a6819" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationTextBlock_302215e1-d016-4f59-bb70-4ac07bf6a9af" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationTextBlock"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueDisclosuresAbstract_f6d0599f-e807-4b31-9bc9-c0451286afaa" xlink:to="loc_us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationTextBlock_302215e1-d016-4f59-bb70-4ac07bf6a9af" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.westpharma.com/role/FairValueMeasurementsDetails" xlink:type="simple" xlink:href="wst-20200331.xsd#FairValueMeasurementsDetails"/>
  <link:presentationLink xlink:role="http://www.westpharma.com/role/FairValueMeasurementsDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueDisclosuresAbstract_4b9608e2-8857-424a-8677-5c83f6cb0209" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_FairValueDisclosuresAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_74cb655f-0e88-405b-802e-7471d7fd9af7" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueDisclosuresAbstract_4b9608e2-8857-424a-8677-5c83f6cb0209" xlink:to="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_74cb655f-0e88-405b-802e-7471d7fd9af7" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis_5e15a4fc-b145-4ee9-82ab-6d009f289ede" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_FairValueByFairValueHierarchyLevelAxis"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_74cb655f-0e88-405b-802e-7471d7fd9af7" xlink:to="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis_5e15a4fc-b145-4ee9-82ab-6d009f289ede" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_88e21d27-ea67-499e-a6ef-f5166cd7c547" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_FairValueMeasurementsFairValueHierarchyDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis_5e15a4fc-b145-4ee9-82ab-6d009f289ede" xlink:to="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_88e21d27-ea67-499e-a6ef-f5166cd7c547" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueInputsLevel1Member_e2a3c0ef-0654-4ea2-9e13-b4cc3972250d" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_FairValueInputsLevel1Member"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_88e21d27-ea67-499e-a6ef-f5166cd7c547" xlink:to="loc_us-gaap_FairValueInputsLevel1Member_e2a3c0ef-0654-4ea2-9e13-b4cc3972250d" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueInputsLevel2Member_bb931291-b480-43e4-9702-839aec11764e" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_FairValueInputsLevel2Member"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_88e21d27-ea67-499e-a6ef-f5166cd7c547" xlink:to="loc_us-gaap_FairValueInputsLevel2Member_bb931291-b480-43e4-9702-839aec11764e" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueInputsLevel3Member_2c9b490b-9c12-4676-b5a9-83740dafa255" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_FairValueInputsLevel3Member"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_88e21d27-ea67-499e-a6ef-f5166cd7c547" xlink:to="loc_us-gaap_FairValueInputsLevel3Member_2c9b490b-9c12-4676-b5a9-83740dafa255" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeInstrumentRiskAxis_1e9a461c-42f6-4941-b031-a49132027536" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DerivativeInstrumentRiskAxis"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_74cb655f-0e88-405b-802e-7471d7fd9af7" xlink:to="loc_us-gaap_DerivativeInstrumentRiskAxis_1e9a461c-42f6-4941-b031-a49132027536" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeContractTypeDomain_9e5d399b-bf6c-4042-a4a8-8ce685ea2fba" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DerivativeContractTypeDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DerivativeInstrumentRiskAxis_1e9a461c-42f6-4941-b031-a49132027536" xlink:to="loc_us-gaap_DerivativeContractTypeDomain_9e5d399b-bf6c-4042-a4a8-8ce685ea2fba" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CurrencySwapMember_c8dfd4c6-c730-4532-9d42-c18cac4437ad" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_CurrencySwapMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DerivativeContractTypeDomain_9e5d399b-bf6c-4042-a4a8-8ce685ea2fba" xlink:to="loc_us-gaap_CurrencySwapMember_c8dfd4c6-c730-4532-9d42-c18cac4437ad" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_88645612-72ea-4929-b39f-2822f552ef90" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_74cb655f-0e88-405b-802e-7471d7fd9af7" xlink:to="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_88645612-72ea-4929-b39f-2822f552ef90" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetsFairValueDisclosureAbstract_586a2515-127e-499d-ad3c-e7f92377495a" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_AssetsFairValueDisclosureAbstract"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_88645612-72ea-4929-b39f-2822f552ef90" xlink:to="loc_us-gaap_AssetsFairValueDisclosureAbstract_586a2515-127e-499d-ad3c-e7f92377495a" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredCompensationPlanAssets_96d659b6-4092-4370-8c2b-7fb6065fed67" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DeferredCompensationPlanAssets"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AssetsFairValueDisclosureAbstract_586a2515-127e-499d-ad3c-e7f92377495a" xlink:to="loc_us-gaap_DeferredCompensationPlanAssets_96d659b6-4092-4370-8c2b-7fb6065fed67" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ForeignCurrencyContractAssetFairValueDisclosure_37d1b718-e04e-4331-876d-385362d465b1" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ForeignCurrencyContractAssetFairValueDisclosure"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AssetsFairValueDisclosureAbstract_586a2515-127e-499d-ad3c-e7f92377495a" xlink:to="loc_us-gaap_ForeignCurrencyContractAssetFairValueDisclosure_37d1b718-e04e-4331-876d-385362d465b1" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherAssetsFairValueDisclosure_a9a9352c-954d-42a5-a77b-783e1701057f" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_OtherAssetsFairValueDisclosure"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AssetsFairValueDisclosureAbstract_586a2515-127e-499d-ad3c-e7f92377495a" xlink:to="loc_us-gaap_OtherAssetsFairValueDisclosure_a9a9352c-954d-42a5-a77b-783e1701057f" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetsFairValueDisclosure_0951adb4-a2b7-4b2c-87b2-2d0682c69b93" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_AssetsFairValueDisclosure"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AssetsFairValueDisclosureAbstract_586a2515-127e-499d-ad3c-e7f92377495a" xlink:to="loc_us-gaap_AssetsFairValueDisclosure_0951adb4-a2b7-4b2c-87b2-2d0682c69b93" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/totalLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LiabilitiesFairValueDisclosureAbstract_bcf6e6cf-4847-4b32-ba8f-d837ecc11832" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LiabilitiesFairValueDisclosureAbstract"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_88645612-72ea-4929-b39f-2822f552ef90" xlink:to="loc_us-gaap_LiabilitiesFairValueDisclosureAbstract_bcf6e6cf-4847-4b32-ba8f-d837ecc11832" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessCombinationContingentConsiderationLiability_9c7cc88d-af86-4fd8-b798-f024f065e790" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_BusinessCombinationContingentConsiderationLiability"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LiabilitiesFairValueDisclosureAbstract_bcf6e6cf-4847-4b32-ba8f-d837ecc11832" xlink:to="loc_us-gaap_BusinessCombinationContingentConsiderationLiability_9c7cc88d-af86-4fd8-b798-f024f065e790" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredCompensationLiabilityClassifiedNoncurrent_6d01cbdf-6e09-4860-aebc-e50ab635500d" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DeferredCompensationLiabilityClassifiedNoncurrent"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LiabilitiesFairValueDisclosureAbstract_bcf6e6cf-4847-4b32-ba8f-d837ecc11832" xlink:to="loc_us-gaap_DeferredCompensationLiabilityClassifiedNoncurrent_6d01cbdf-6e09-4860-aebc-e50ab635500d" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ForeignCurrencyContractsLiabilityFairValueDisclosure_c0e85462-dc33-4ad4-8f0e-80c342b8e566" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ForeignCurrencyContractsLiabilityFairValueDisclosure"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LiabilitiesFairValueDisclosureAbstract_bcf6e6cf-4847-4b32-ba8f-d837ecc11832" xlink:to="loc_us-gaap_ForeignCurrencyContractsLiabilityFairValueDisclosure_c0e85462-dc33-4ad4-8f0e-80c342b8e566" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LiabilitiesFairValueDisclosure_095640d4-0f84-4636-a3d5-b45c599d7520" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LiabilitiesFairValueDisclosure"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LiabilitiesFairValueDisclosureAbstract_bcf6e6cf-4847-4b32-ba8f-d837ecc11832" xlink:to="loc_us-gaap_LiabilitiesFairValueDisclosure_095640d4-0f84-4636-a3d5-b45c599d7520" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/totalLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.westpharma.com/role/FairValueMeasurementsLevel3Details" xlink:type="simple" xlink:href="wst-20200331.xsd#FairValueMeasurementsLevel3Details"/>
  <link:presentationLink xlink:role="http://www.westpharma.com/role/FairValueMeasurementsLevel3Details" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueDisclosuresAbstract_1f72317d-b574-4d05-8b5e-d5f545415431" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_FairValueDisclosuresAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationCalculationRollForward_e7d39f79-94b1-430f-b384-295a987a83a4" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationCalculationRollForward"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueDisclosuresAbstract_1f72317d-b574-4d05-8b5e-d5f545415431" xlink:to="loc_us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationCalculationRollForward_e7d39f79-94b1-430f-b384-295a987a83a4" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationsRecurringBasisLiabilityValue_446b9e53-4248-474c-a383-397abef5e032" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationsRecurringBasisLiabilityValue"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationCalculationRollForward_e7d39f79-94b1-430f-b384-295a987a83a4" xlink:to="loc_us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationsRecurringBasisLiabilityValue_446b9e53-4248-474c-a383-397abef5e032" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/periodStartLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityGainLossIncludedInEarnings_5b5e1371-6bd7-4faf-b927-a873c178a1eb" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityGainLossIncludedInEarnings"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationCalculationRollForward_e7d39f79-94b1-430f-b384-295a987a83a4" xlink:to="loc_us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilityGainLossIncludedInEarnings_5b5e1371-6bd7-4faf-b927-a873c178a1eb" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilitySettlements_58f23586-d3cf-4e2b-9fb2-85acd28f8529" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilitySettlements"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationCalculationRollForward_e7d39f79-94b1-430f-b384-295a987a83a4" xlink:to="loc_us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisLiabilitySettlements_58f23586-d3cf-4e2b-9fb2-85acd28f8529" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationsRecurringBasisLiabilityValue_53c7d189-407b-4f0b-93e8-6a086da3b9d9" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationsRecurringBasisLiabilityValue"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationCalculationRollForward_e7d39f79-94b1-430f-b384-295a987a83a4" xlink:to="loc_us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationsRecurringBasisLiabilityValue_53c7d189-407b-4f0b-93e8-6a086da3b9d9" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/periodEndLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessCombinationContingentConsiderationLiabilityMeasurementInput_acb5984b-32be-4cc3-b110-431385eaded9" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_BusinessCombinationContingentConsiderationLiabilityMeasurementInput"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueDisclosuresAbstract_1f72317d-b574-4d05-8b5e-d5f545415431" xlink:to="loc_us-gaap_BusinessCombinationContingentConsiderationLiabilityMeasurementInput_acb5984b-32be-4cc3-b110-431385eaded9" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_wst_BusinessCombinationContingentConsiderationMeasurementInput_d98e9900-34dd-4e05-979d-35e3e7b1033a" xlink:href="wst-20200331.xsd#wst_BusinessCombinationContingentConsiderationMeasurementInput"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueDisclosuresAbstract_1f72317d-b574-4d05-8b5e-d5f545415431" xlink:to="loc_wst_BusinessCombinationContingentConsiderationMeasurementInput_d98e9900-34dd-4e05-979d-35e3e7b1033a" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesTable_f39c32f8-a644-400a-a4b1-0b579fec29c4" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesTable"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueDisclosuresAbstract_1f72317d-b574-4d05-8b5e-d5f545415431" xlink:to="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesTable_f39c32f8-a644-400a-a4b1-0b579fec29c4" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeAxis_134f1628-218b-4ee0-b5a8-94c4008f6bbe" xlink:href="http://xbrl.fasb.org/srt/2019/elts/srt-2019-01-31.xsd#srt_RangeAxis"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesTable_f39c32f8-a644-400a-a4b1-0b579fec29c4" xlink:to="loc_srt_RangeAxis_134f1628-218b-4ee0-b5a8-94c4008f6bbe" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeMember_2e76b8c0-ca3f-4dec-b8be-a82d9b88ea6b" xlink:href="http://xbrl.fasb.org/srt/2019/elts/srt-2019-01-31.xsd#srt_RangeMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_srt_RangeAxis_134f1628-218b-4ee0-b5a8-94c4008f6bbe" xlink:to="loc_srt_RangeMember_2e76b8c0-ca3f-4dec-b8be-a82d9b88ea6b" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_wst_ForecastedUpsideCaseMember_766ba915-77a5-45cd-8c9f-9041da943996" xlink:href="wst-20200331.xsd#wst_ForecastedUpsideCaseMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_srt_RangeMember_2e76b8c0-ca3f-4dec-b8be-a82d9b88ea6b" xlink:to="loc_wst_ForecastedUpsideCaseMember_766ba915-77a5-45cd-8c9f-9041da943996" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_MinimumMember_4d42f652-9d15-40c7-942a-0ed4669e0444" xlink:href="http://xbrl.fasb.org/srt/2019/elts/srt-2019-01-31.xsd#srt_MinimumMember"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_srt_RangeMember_2e76b8c0-ca3f-4dec-b8be-a82d9b88ea6b" xlink:to="loc_srt_MinimumMember_4d42f652-9d15-40c7-942a-0ed4669e0444" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_MaximumMember_fa8027b4-f0b0-4b25-8b1a-afaa981a4694" xlink:href="http://xbrl.fasb.org/srt/2019/elts/srt-2019-01-31.xsd#srt_MaximumMember"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_srt_RangeMember_2e76b8c0-ca3f-4dec-b8be-a82d9b88ea6b" xlink:to="loc_srt_MaximumMember_fa8027b4-f0b0-4b25-8b1a-afaa981a4694" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_wst_ForecastedBaseCaseMember_ffee5211-14aa-42ea-bc4d-bb5817584369" xlink:href="wst-20200331.xsd#wst_ForecastedBaseCaseMember"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_srt_RangeMember_2e76b8c0-ca3f-4dec-b8be-a82d9b88ea6b" xlink:to="loc_wst_ForecastedBaseCaseMember_ffee5211-14aa-42ea-bc4d-bb5817584369" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_wst_ForecastedDownsideCaseMember_bdec1a8d-4661-49b9-812c-fd70b6656266" xlink:href="wst-20200331.xsd#wst_ForecastedDownsideCaseMember"/>
    <link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_srt_RangeMember_2e76b8c0-ca3f-4dec-b8be-a82d9b88ea6b" xlink:to="loc_wst_ForecastedDownsideCaseMember_bdec1a8d-4661-49b9-812c-fd70b6656266" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_MeasurementInputTypeAxis_b95c4316-73b2-41ce-bdcf-77aa9f6a5897" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_MeasurementInputTypeAxis"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesTable_f39c32f8-a644-400a-a4b1-0b579fec29c4" xlink:to="loc_us-gaap_MeasurementInputTypeAxis_b95c4316-73b2-41ce-bdcf-77aa9f6a5897" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_MeasurementInputTypeDomain_4cfc3aa9-94d7-4e7d-ad06-5759cdd87683" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_MeasurementInputTypeDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_MeasurementInputTypeAxis_b95c4316-73b2-41ce-bdcf-77aa9f6a5897" xlink:to="loc_us-gaap_MeasurementInputTypeDomain_4cfc3aa9-94d7-4e7d-ad06-5759cdd87683" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_wst_SalesProjectionsMember_d6af3523-ccdf-491c-8df0-f890cbf85748" xlink:href="wst-20200331.xsd#wst_SalesProjectionsMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_MeasurementInputTypeDomain_4cfc3aa9-94d7-4e7d-ad06-5759cdd87683" xlink:to="loc_wst_SalesProjectionsMember_d6af3523-ccdf-491c-8df0-f890cbf85748" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_wst_ProbabilitiesOfSuccessfulFDAApprovalMember_3312d93e-046d-41d5-8e8a-51a4776a78c9" xlink:href="wst-20200331.xsd#wst_ProbabilitiesOfSuccessfulFDAApprovalMember"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_MeasurementInputTypeDomain_4cfc3aa9-94d7-4e7d-ad06-5759cdd87683" xlink:to="loc_wst_ProbabilitiesOfSuccessfulFDAApprovalMember_3312d93e-046d-41d5-8e8a-51a4776a78c9" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_wst_ProbabilitiesOfSuccessfulExecutionOfAgreementMember_3cf8dd99-2a42-40a6-b18a-d18d7b4ac058" xlink:href="wst-20200331.xsd#wst_ProbabilitiesOfSuccessfulExecutionOfAgreementMember"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_MeasurementInputTypeDomain_4cfc3aa9-94d7-4e7d-ad06-5759cdd87683" xlink:to="loc_wst_ProbabilitiesOfSuccessfulExecutionOfAgreementMember_3cf8dd99-2a42-40a6-b18a-d18d7b4ac058" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_MeasurementInputDiscountRateMember_43721b9c-5883-430c-939b-ff0c670ac9f0" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_MeasurementInputDiscountRateMember"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_MeasurementInputTypeDomain_4cfc3aa9-94d7-4e7d-ad06-5759cdd87683" xlink:to="loc_us-gaap_MeasurementInputDiscountRateMember_43721b9c-5883-430c-939b-ff0c670ac9f0" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesLineItems_01485471-0477-4f49-ac31-0bec7e00577b" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesLineItems"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesTable_f39c32f8-a644-400a-a4b1-0b579fec29c4" xlink:to="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesLineItems_01485471-0477-4f49-ac31-0bec7e00577b" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_wst_BusinessCombinationContingentConsiderationMeasurementInput_7ff8ba18-bbc2-429d-8515-4bac0d9b2973" xlink:href="wst-20200331.xsd#wst_BusinessCombinationContingentConsiderationMeasurementInput"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisValuationTechniquesLineItems_01485471-0477-4f49-ac31-0bec7e00577b" xlink:to="loc_wst_BusinessCombinationContingentConsiderationMeasurementInput_7ff8ba18-bbc2-429d-8515-4bac0d9b2973" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.westpharma.com/role/FairValueMeasurementsOtherFinancialInstrumentsDetails" xlink:type="simple" xlink:href="wst-20200331.xsd#FairValueMeasurementsOtherFinancialInstrumentsDetails"/>
  <link:presentationLink xlink:role="http://www.westpharma.com/role/FairValueMeasurementsOtherFinancialInstrumentsDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueDisclosuresAbstract_d2ae74d3-7322-4df6-b040-2fc1d7a4c6ba" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_FairValueDisclosuresAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_wst_OtherFinancialInstrumentsAbstract_385f1256-e3ff-4eca-8278-965734e83dbf" xlink:href="wst-20200331.xsd#wst_OtherFinancialInstrumentsAbstract"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_FairValueDisclosuresAbstract_d2ae74d3-7322-4df6-b040-2fc1d7a4c6ba" xlink:to="loc_wst_OtherFinancialInstrumentsAbstract_385f1256-e3ff-4eca-8278-965734e83dbf" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermDebtFairValue_417fd8b4-6224-4241-86de-48a159c334ec" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LongTermDebtFairValue"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_wst_OtherFinancialInstrumentsAbstract_385f1256-e3ff-4eca-8278-965734e83dbf" xlink:to="loc_us-gaap_LongTermDebtFairValue_417fd8b4-6224-4241-86de-48a159c334ec" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermDebtNoncurrent_2c8d1a63-5b6f-4991-90cd-1decc0959c9a" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LongTermDebtNoncurrent"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_wst_OtherFinancialInstrumentsAbstract_385f1256-e3ff-4eca-8278-965734e83dbf" xlink:to="loc_us-gaap_LongTermDebtNoncurrent_2c8d1a63-5b6f-4991-90cd-1decc0959c9a" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.westpharma.com/role/AccumulatedOtherComprehensiveLoss" xlink:type="simple" xlink:href="wst-20200331.xsd#AccumulatedOtherComprehensiveLoss"/>
  <link:presentationLink xlink:role="http://www.westpharma.com/role/AccumulatedOtherComprehensiveLoss" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquityAbstract_db1ff310-a6f0-4a11-97c0-921bb5729b72" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_EquityAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ComprehensiveIncomeNoteTextBlock_6022dbf8-59c0-43ec-9fca-d20323308dff" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ComprehensiveIncomeNoteTextBlock"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EquityAbstract_db1ff310-a6f0-4a11-97c0-921bb5729b72" xlink:to="loc_us-gaap_ComprehensiveIncomeNoteTextBlock_6022dbf8-59c0-43ec-9fca-d20323308dff" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.westpharma.com/role/AccumulatedOtherComprehensiveLossTables" xlink:type="simple" xlink:href="wst-20200331.xsd#AccumulatedOtherComprehensiveLossTables"/>
  <link:presentationLink xlink:role="http://www.westpharma.com/role/AccumulatedOtherComprehensiveLossTables" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquityAbstract_ceff865c-e853-457a-ab7b-49bb538b38a2" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_EquityAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfAccumulatedOtherComprehensiveIncomeLossTableTextBlock_b2ae3073-7732-44e2-a4ca-3dbb18001d86" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ScheduleOfAccumulatedOtherComprehensiveIncomeLossTableTextBlock"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EquityAbstract_ceff865c-e853-457a-ab7b-49bb538b38a2" xlink:to="loc_us-gaap_ScheduleOfAccumulatedOtherComprehensiveIncomeLossTableTextBlock_b2ae3073-7732-44e2-a4ca-3dbb18001d86" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeTableTextBlock_70533b08-34d2-4591-9bb5-a13150478f38" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeTableTextBlock"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EquityAbstract_ceff865c-e853-457a-ab7b-49bb538b38a2" xlink:to="loc_us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeTableTextBlock_70533b08-34d2-4591-9bb5-a13150478f38" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.westpharma.com/role/AccumulatedOtherComprehensiveLossComponentsDetails" xlink:type="simple" xlink:href="wst-20200331.xsd#AccumulatedOtherComprehensiveLossComponentsDetails"/>
  <link:presentationLink xlink:role="http://www.westpharma.com/role/AccumulatedOtherComprehensiveLossComponentsDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquityAbstract_438b645e-5c45-49e7-b9d1-2c5bb41fde02" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_EquityAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossTable_8132bdb4-d534-4bac-9964-fda65ad029c0" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_AccumulatedOtherComprehensiveIncomeLossTable"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EquityAbstract_438b645e-5c45-49e7-b9d1-2c5bb41fde02" xlink:to="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossTable_8132bdb4-d534-4bac-9964-fda65ad029c0" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeAxis_3322c831-894e-4a1d-a057-0e632abbe97d" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeAxis"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossTable_8132bdb4-d534-4bac-9964-fda65ad029c0" xlink:to="loc_us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeAxis_3322c831-894e-4a1d-a057-0e632abbe97d" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeDomain_c315317c-edfb-4f51-94e6-9c5a36f34c08" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeAxis_3322c831-894e-4a1d-a057-0e632abbe97d" xlink:to="loc_us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeDomain_c315317c-edfb-4f51-94e6-9c5a36f34c08" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMember_2cf7e050-a3c1-471c-be80-b3cb19cfe144" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeDomain_c315317c-edfb-4f51-94e6-9c5a36f34c08" xlink:to="loc_us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMember_2cf7e050-a3c1-471c-be80-b3cb19cfe144" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementEquityComponentsAxis_265c86a4-b3eb-4d0d-8dc2-f303f16b1c4e" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_StatementEquityComponentsAxis"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossTable_8132bdb4-d534-4bac-9964-fda65ad029c0" xlink:to="loc_us-gaap_StatementEquityComponentsAxis_265c86a4-b3eb-4d0d-8dc2-f303f16b1c4e" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquityComponentDomain_35b84cde-f9cc-44dd-9e2b-34845143970d" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_EquityComponentDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementEquityComponentsAxis_265c86a4-b3eb-4d0d-8dc2-f303f16b1c4e" xlink:to="loc_us-gaap_EquityComponentDomain_35b84cde-f9cc-44dd-9e2b-34845143970d" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccumulatedNetGainLossFromDesignatedOrQualifyingCashFlowHedgesMember_971144ba-e861-4703-b334-94d47ebbea4f" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_AccumulatedNetGainLossFromDesignatedOrQualifyingCashFlowHedgesMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EquityComponentDomain_35b84cde-f9cc-44dd-9e2b-34845143970d" xlink:to="loc_us-gaap_AccumulatedNetGainLossFromDesignatedOrQualifyingCashFlowHedgesMember_971144ba-e861-4703-b334-94d47ebbea4f" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccumulatedNetUnrealizedInvestmentGainLossMember_710d118d-fa4c-4045-aa72-de2684fd602f" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_AccumulatedNetUnrealizedInvestmentGainLossMember"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EquityComponentDomain_35b84cde-f9cc-44dd-9e2b-34845143970d" xlink:to="loc_us-gaap_AccumulatedNetUnrealizedInvestmentGainLossMember_710d118d-fa4c-4045-aa72-de2684fd602f" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccumulatedDefinedBenefitPlansAdjustmentMember_371f822a-f37d-4cfe-b1ae-3adcae4296f8" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_AccumulatedDefinedBenefitPlansAdjustmentMember"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EquityComponentDomain_35b84cde-f9cc-44dd-9e2b-34845143970d" xlink:to="loc_us-gaap_AccumulatedDefinedBenefitPlansAdjustmentMember_371f822a-f37d-4cfe-b1ae-3adcae4296f8" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccumulatedTranslationAdjustmentMember_f91c9bbc-6f94-4d3c-bddd-4584a90df855" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_AccumulatedTranslationAdjustmentMember"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EquityComponentDomain_35b84cde-f9cc-44dd-9e2b-34845143970d" xlink:to="loc_us-gaap_AccumulatedTranslationAdjustmentMember_f91c9bbc-6f94-4d3c-bddd-4584a90df855" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossLineItems_4cbb41e9-9d8f-41c6-a600-931802da9dc5" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_AccumulatedOtherComprehensiveIncomeLossLineItems"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossTable_8132bdb4-d534-4bac-9964-fda65ad029c0" xlink:to="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossLineItems_4cbb41e9-9d8f-41c6-a600-931802da9dc5" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_3db158c9-a929-4fe7-a2bf-26cd372fb1d0" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_IncreaseDecreaseInStockholdersEquityRollForward"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossLineItems_4cbb41e9-9d8f-41c6-a600-931802da9dc5" xlink:to="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_3db158c9-a929-4fe7-a2bf-26cd372fb1d0" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax_47a831fc-611a-41be-b6b1-90167a3b94cb" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_3db158c9-a929-4fe7-a2bf-26cd372fb1d0" xlink:to="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax_47a831fc-611a-41be-b6b1-90167a3b94cb" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/periodStartLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax_f1adf340-944a-4376-8f1b-9e051761cd66" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_3db158c9-a929-4fe7-a2bf-26cd372fb1d0" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax_f1adf340-944a-4376-8f1b-9e051761cd66" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax_bf107879-f6b2-413c-96a3-ab346c565e8f" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_3db158c9-a929-4fe7-a2bf-26cd372fb1d0" xlink:to="loc_us-gaap_ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax_bf107879-f6b2-413c-96a3-ab346c565e8f" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTax_e7ddf203-5b31-496d-8423-bba0ba10ff2f" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_OtherComprehensiveIncomeLossNetOfTax"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_3db158c9-a929-4fe7-a2bf-26cd372fb1d0" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTax_e7ddf203-5b31-496d-8423-bba0ba10ff2f" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/totalLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax_3f8c4114-af09-4276-b3c7-f7433de9ff60" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax"/>
    <link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_3db158c9-a929-4fe7-a2bf-26cd372fb1d0" xlink:to="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax_3f8c4114-af09-4276-b3c7-f7433de9ff60" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/periodEndLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.westpharma.com/role/AccumulatedOtherComprehensiveLossReclassificationsDetails" xlink:type="simple" xlink:href="wst-20200331.xsd#AccumulatedOtherComprehensiveLossReclassificationsDetails"/>
  <link:presentationLink xlink:role="http://www.westpharma.com/role/AccumulatedOtherComprehensiveLossReclassificationsDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquityAbstract_c40bae1b-3fc8-4f9a-ad1d-e21fd7b6d9f2" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_EquityAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeTable_01975f3d-96d3-4d71-b84b-5098c8966abf" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeTable"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EquityAbstract_c40bae1b-3fc8-4f9a-ad1d-e21fd7b6d9f2" xlink:to="loc_us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeTable_01975f3d-96d3-4d71-b84b-5098c8966abf" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeInstrumentRiskAxis_8a54ac1a-b411-41db-ba2f-a032777cf90c" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DerivativeInstrumentRiskAxis"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeTable_01975f3d-96d3-4d71-b84b-5098c8966abf" xlink:to="loc_us-gaap_DerivativeInstrumentRiskAxis_8a54ac1a-b411-41db-ba2f-a032777cf90c" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeContractTypeDomain_73a4ba50-a835-4cde-8e5b-16fcc2e18ee0" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DerivativeContractTypeDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DerivativeInstrumentRiskAxis_8a54ac1a-b411-41db-ba2f-a032777cf90c" xlink:to="loc_us-gaap_DerivativeContractTypeDomain_73a4ba50-a835-4cde-8e5b-16fcc2e18ee0" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ForeignExchangeContractMember_dd9852b3-9b56-4846-b06f-4c92eabc76ac" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ForeignExchangeContractMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DerivativeContractTypeDomain_73a4ba50-a835-4cde-8e5b-16fcc2e18ee0" xlink:to="loc_us-gaap_ForeignExchangeContractMember_dd9852b3-9b56-4846-b06f-4c92eabc76ac" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InterestRateSwapMember_f8fd2904-fed8-493e-8489-58f811fffd69" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_InterestRateSwapMember"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DerivativeContractTypeDomain_73a4ba50-a835-4cde-8e5b-16fcc2e18ee0" xlink:to="loc_us-gaap_InterestRateSwapMember_f8fd2904-fed8-493e-8489-58f811fffd69" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TreasuryLockMember_73fcce69-9084-4f7c-b29a-a7729fe90957" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_TreasuryLockMember"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DerivativeContractTypeDomain_73a4ba50-a835-4cde-8e5b-16fcc2e18ee0" xlink:to="loc_us-gaap_TreasuryLockMember_73fcce69-9084-4f7c-b29a-a7729fe90957" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeAxis_69f2c1b0-f4ef-45aa-acf2-74cfc62c5da7" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeAxis"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeTable_01975f3d-96d3-4d71-b84b-5098c8966abf" xlink:to="loc_us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeAxis_69f2c1b0-f4ef-45aa-acf2-74cfc62c5da7" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeDomain_8a26c783-396b-4243-a4ea-c16d8655c506" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeAxis_69f2c1b0-f4ef-45aa-acf2-74cfc62c5da7" xlink:to="loc_us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeDomain_8a26c783-396b-4243-a4ea-c16d8655c506" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMember_7d626bb1-66e8-4124-9bf4-4ffb2d92a8f2" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeDomain_8a26c783-396b-4243-a4ea-c16d8655c506" xlink:to="loc_us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMember_7d626bb1-66e8-4124-9bf4-4ffb2d92a8f2" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementEquityComponentsAxis_76d68e17-b114-4747-8759-c9a094e21cc3" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_StatementEquityComponentsAxis"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeTable_01975f3d-96d3-4d71-b84b-5098c8966abf" xlink:to="loc_us-gaap_StatementEquityComponentsAxis_76d68e17-b114-4747-8759-c9a094e21cc3" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquityComponentDomain_72fdfce3-1435-4e6f-8efd-44981cc86c11" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_EquityComponentDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementEquityComponentsAxis_76d68e17-b114-4747-8759-c9a094e21cc3" xlink:to="loc_us-gaap_EquityComponentDomain_72fdfce3-1435-4e6f-8efd-44981cc86c11" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccumulatedNetGainLossFromDesignatedOrQualifyingCashFlowHedgesMember_4008fcaf-f820-442f-b11e-2f92237df715" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_AccumulatedNetGainLossFromDesignatedOrQualifyingCashFlowHedgesMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EquityComponentDomain_72fdfce3-1435-4e6f-8efd-44981cc86c11" xlink:to="loc_us-gaap_AccumulatedNetGainLossFromDesignatedOrQualifyingCashFlowHedgesMember_4008fcaf-f820-442f-b11e-2f92237df715" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccumulatedDefinedBenefitPlansAdjustmentMember_d81ab13d-d9b5-4e1d-9775-07fb94b8df48" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_AccumulatedDefinedBenefitPlansAdjustmentMember"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EquityComponentDomain_72fdfce3-1435-4e6f-8efd-44981cc86c11" xlink:to="loc_us-gaap_AccumulatedDefinedBenefitPlansAdjustmentMember_d81ab13d-d9b5-4e1d-9775-07fb94b8df48" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ReclassificationAdjustmentOutOfAccumulatedOtherComprehensiveIncomeLineItems_64d91995-5a0f-49a4-99f4-06bc6b9ee220" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ReclassificationAdjustmentOutOfAccumulatedOtherComprehensiveIncomeLineItems"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeTable_01975f3d-96d3-4d71-b84b-5098c8966abf" xlink:to="loc_us-gaap_ReclassificationAdjustmentOutOfAccumulatedOtherComprehensiveIncomeLineItems_64d91995-5a0f-49a4-99f4-06bc6b9ee220" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Revenues_1d53a9f3-56d2-45a1-b186-d99247d8f90b" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_Revenues"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ReclassificationAdjustmentOutOfAccumulatedOtherComprehensiveIncomeLineItems_64d91995-5a0f-49a4-99f4-06bc6b9ee220" xlink:to="loc_us-gaap_Revenues_1d53a9f3-56d2-45a1-b186-d99247d8f90b" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CostOfGoodsAndServicesSold_3aba859b-1f69-4f58-90f8-8ec1e0f3c580" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_CostOfGoodsAndServicesSold"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ReclassificationAdjustmentOutOfAccumulatedOtherComprehensiveIncomeLineItems_64d91995-5a0f-49a4-99f4-06bc6b9ee220" xlink:to="loc_us-gaap_CostOfGoodsAndServicesSold_3aba859b-1f69-4f58-90f8-8ec1e0f3c580" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InterestExpense_c5e4c9fc-5ba7-4245-9a0c-8501a92352d0" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_InterestExpense"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ReclassificationAdjustmentOutOfAccumulatedOtherComprehensiveIncomeLineItems_64d91995-5a0f-49a4-99f4-06bc6b9ee220" xlink:to="loc_us-gaap_InterestExpense_c5e4c9fc-5ba7-4245-9a0c-8501a92352d0" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DefinedBenefitPlanAmortizationOfPriorServiceCostCredit_8cbb1d67-1e2e-4f35-949d-80cdc2b823e4" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DefinedBenefitPlanAmortizationOfPriorServiceCostCredit"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ReclassificationAdjustmentOutOfAccumulatedOtherComprehensiveIncomeLineItems_64d91995-5a0f-49a4-99f4-06bc6b9ee220" xlink:to="loc_us-gaap_DefinedBenefitPlanAmortizationOfPriorServiceCostCredit_8cbb1d67-1e2e-4f35-949d-80cdc2b823e4" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DefinedBenefitPlanActuarialGainLoss_f5db06d8-1631-4d55-ba9b-b0adcf4cd3c6" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DefinedBenefitPlanActuarialGainLoss"/>
    <link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ReclassificationAdjustmentOutOfAccumulatedOtherComprehensiveIncomeLineItems_64d91995-5a0f-49a4-99f4-06bc6b9ee220" xlink:to="loc_us-gaap_DefinedBenefitPlanActuarialGainLoss_f5db06d8-1631-4d55-ba9b-b0adcf4cd3c6" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DefinedBenefitPlanRecognizedNetGainLossDueToSettlements1_34d4707f-6eea-4e80-b372-0ded7399de21" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DefinedBenefitPlanRecognizedNetGainLossDueToSettlements1"/>
    <link:presentationArc order="6" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ReclassificationAdjustmentOutOfAccumulatedOtherComprehensiveIncomeLineItems_64d91995-5a0f-49a4-99f4-06bc6b9ee220" xlink:to="loc_us-gaap_DefinedBenefitPlanRecognizedNetGainLossDueToSettlements1_34d4707f-6eea-4e80-b372-0ded7399de21" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments_9b98def3-910d-4639-8850-ac5633d67b20" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments"/>
    <link:presentationArc order="7" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ReclassificationAdjustmentOutOfAccumulatedOtherComprehensiveIncomeLineItems_64d91995-5a0f-49a4-99f4-06bc6b9ee220" xlink:to="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments_9b98def3-910d-4639-8850-ac5633d67b20" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/totalLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeTaxExpenseBenefit_53a3ba09-de4e-4075-a37d-46a60f5ad291" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_IncomeTaxExpenseBenefit"/>
    <link:presentationArc order="8" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ReclassificationAdjustmentOutOfAccumulatedOtherComprehensiveIncomeLineItems_64d91995-5a0f-49a4-99f4-06bc6b9ee220" xlink:to="loc_us-gaap_IncomeTaxExpenseBenefit_53a3ba09-de4e-4075-a37d-46a60f5ad291" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProfitLoss_f6b4ee68-855d-4e8a-a21b-14483f5c6ca0" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ProfitLoss"/>
    <link:presentationArc order="9" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ReclassificationAdjustmentOutOfAccumulatedOtherComprehensiveIncomeLineItems_64d91995-5a0f-49a4-99f4-06bc6b9ee220" xlink:to="loc_us-gaap_ProfitLoss_f6b4ee68-855d-4e8a-a21b-14483f5c6ca0" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/totalLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.westpharma.com/role/ShareholdersEquity" xlink:type="simple" xlink:href="wst-20200331.xsd#ShareholdersEquity"/>
  <link:presentationLink xlink:role="http://www.westpharma.com/role/ShareholdersEquity" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquityAbstract_212e62a7-5b7c-414b-86a6-2b7ecbf9641b" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_EquityAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockholdersEquityNoteDisclosureTextBlock_f4d97028-456e-4fe7-93a6-80504d5e68f3" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_StockholdersEquityNoteDisclosureTextBlock"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EquityAbstract_212e62a7-5b7c-414b-86a6-2b7ecbf9641b" xlink:to="loc_us-gaap_StockholdersEquityNoteDisclosureTextBlock_f4d97028-456e-4fe7-93a6-80504d5e68f3" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.westpharma.com/role/ShareholdersEquityTables" xlink:type="simple" xlink:href="wst-20200331.xsd#ShareholdersEquityTables"/>
  <link:presentationLink xlink:role="http://www.westpharma.com/role/ShareholdersEquityTables" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquityAbstract_86da9aa1-fa0d-45a4-8163-f33615f6ade2" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_EquityAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfStockholdersEquityTableTextBlock_29cfa28a-9562-44b4-8e8d-86d00cac3814" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ScheduleOfStockholdersEquityTableTextBlock"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EquityAbstract_86da9aa1-fa0d-45a4-8163-f33615f6ade2" xlink:to="loc_us-gaap_ScheduleOfStockholdersEquityTableTextBlock_29cfa28a-9562-44b4-8e8d-86d00cac3814" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.westpharma.com/role/ChangeinShareholdersEquityDetails" xlink:type="simple" xlink:href="wst-20200331.xsd#ChangeinShareholdersEquityDetails"/>
  <link:presentationLink xlink:role="http://www.westpharma.com/role/ChangeinShareholdersEquityDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquityAbstract_ce084405-920e-423f-8024-dd9b497d2f74" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_EquityAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementTable_1fc469c2-0dc1-47ed-aecf-bdc01964fe73" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_StatementTable"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EquityAbstract_ce084405-920e-423f-8024-dd9b497d2f74" xlink:to="loc_us-gaap_StatementTable_1fc469c2-0dc1-47ed-aecf-bdc01964fe73" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementEquityComponentsAxis_20289c6c-5718-4d39-9177-bd9fa912d72c" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_StatementEquityComponentsAxis"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementTable_1fc469c2-0dc1-47ed-aecf-bdc01964fe73" xlink:to="loc_us-gaap_StatementEquityComponentsAxis_20289c6c-5718-4d39-9177-bd9fa912d72c" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquityComponentDomain_f8e69e63-9871-4e24-9792-7bbe90d8cd91" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_EquityComponentDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementEquityComponentsAxis_20289c6c-5718-4d39-9177-bd9fa912d72c" xlink:to="loc_us-gaap_EquityComponentDomain_f8e69e63-9871-4e24-9792-7bbe90d8cd91" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockMember_50c81701-1607-403e-92d0-636181ded2d1" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_CommonStockMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EquityComponentDomain_f8e69e63-9871-4e24-9792-7bbe90d8cd91" xlink:to="loc_us-gaap_CommonStockMember_50c81701-1607-403e-92d0-636181ded2d1" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AdditionalPaidInCapitalMember_bccf0435-240a-440c-88b6-5f9579da7e4f" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_AdditionalPaidInCapitalMember"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EquityComponentDomain_f8e69e63-9871-4e24-9792-7bbe90d8cd91" xlink:to="loc_us-gaap_AdditionalPaidInCapitalMember_bccf0435-240a-440c-88b6-5f9579da7e4f" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TreasuryStockMember_308ce742-747c-48e9-bc19-4266de51d073" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_TreasuryStockMember"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EquityComponentDomain_f8e69e63-9871-4e24-9792-7bbe90d8cd91" xlink:to="loc_us-gaap_TreasuryStockMember_308ce742-747c-48e9-bc19-4266de51d073" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RetainedEarningsMember_8876903c-b383-4652-ab4e-7bfd48348a0c" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_RetainedEarningsMember"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EquityComponentDomain_f8e69e63-9871-4e24-9792-7bbe90d8cd91" xlink:to="loc_us-gaap_RetainedEarningsMember_8876903c-b383-4652-ab4e-7bfd48348a0c" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccumulatedOtherComprehensiveIncomeMember_46337a8f-d86f-4375-acda-0e78b52cd62d" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_AccumulatedOtherComprehensiveIncomeMember"/>
    <link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EquityComponentDomain_f8e69e63-9871-4e24-9792-7bbe90d8cd91" xlink:to="loc_us-gaap_AccumulatedOtherComprehensiveIncomeMember_46337a8f-d86f-4375-acda-0e78b52cd62d" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementLineItems_08132748-6a3c-4d4b-b700-d05a68d1f8d5" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_StatementLineItems"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementTable_1fc469c2-0dc1-47ed-aecf-bdc01964fe73" xlink:to="loc_us-gaap_StatementLineItems_08132748-6a3c-4d4b-b700-d05a68d1f8d5" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_681e2ed9-8efa-4ad0-b220-aa1af7744043" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_IncreaseDecreaseInStockholdersEquityRollForward"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementLineItems_08132748-6a3c-4d4b-b700-d05a68d1f8d5" xlink:to="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_681e2ed9-8efa-4ad0-b220-aa1af7744043" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest_6c5f8052-08d3-4223-b618-b4026b34b764" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_681e2ed9-8efa-4ad0-b220-aa1af7744043" xlink:to="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest_6c5f8052-08d3-4223-b618-b4026b34b764" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/periodStartLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SharesIssued_046800ec-2ccf-4507-9799-a9c0971e72bb" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_SharesIssued"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_681e2ed9-8efa-4ad0-b220-aa1af7744043" xlink:to="loc_us-gaap_SharesIssued_046800ec-2ccf-4507-9799-a9c0971e72bb" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/periodStartLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CumulativeEffectOfNewAccountingPrincipleInPeriodOfAdoption_d1a144cd-c2cc-4b1e-ac70-eaa31c650453" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_CumulativeEffectOfNewAccountingPrincipleInPeriodOfAdoption"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_681e2ed9-8efa-4ad0-b220-aa1af7744043" xlink:to="loc_us-gaap_CumulativeEffectOfNewAccountingPrincipleInPeriodOfAdoption_d1a144cd-c2cc-4b1e-ac70-eaa31c650453" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProfitLoss_8619a45b-6074-4a04-aa5e-9f5fbdab5792" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ProfitLoss"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_681e2ed9-8efa-4ad0-b220-aa1af7744043" xlink:to="loc_us-gaap_ProfitLoss_8619a45b-6074-4a04-aa5e-9f5fbdab5792" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue_e443e663-c022-41ab-b235-a04c78cb306a" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue"/>
    <link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_681e2ed9-8efa-4ad0-b220-aa1af7744043" xlink:to="loc_us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue_e443e663-c022-41ab-b235-a04c78cb306a" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockIssuedDuringPeriodSharesShareBasedCompensation_33e16130-e46e-4691-90a7-892d19a20686" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_StockIssuedDuringPeriodSharesShareBasedCompensation"/>
    <link:presentationArc order="6" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_681e2ed9-8efa-4ad0-b220-aa1af7744043" xlink:to="loc_us-gaap_StockIssuedDuringPeriodSharesShareBasedCompensation_33e16130-e46e-4691-90a7-892d19a20686" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockIssuedDuringPeriodValueShareBasedCompensation_43d4809d-ef11-441a-8f24-f4f26613ace1" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_StockIssuedDuringPeriodValueShareBasedCompensation"/>
    <link:presentationArc order="7" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_681e2ed9-8efa-4ad0-b220-aa1af7744043" xlink:to="loc_us-gaap_StockIssuedDuringPeriodValueShareBasedCompensation_43d4809d-ef11-441a-8f24-f4f26613ace1" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TreasuryStockSharesAcquired_1659aefa-9735-4024-bdc3-ea60a058ac0a" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_TreasuryStockSharesAcquired"/>
    <link:presentationArc order="8" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_681e2ed9-8efa-4ad0-b220-aa1af7744043" xlink:to="loc_us-gaap_TreasuryStockSharesAcquired_1659aefa-9735-4024-bdc3-ea60a058ac0a" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TreasuryStockValueAcquiredCostMethod_acce64be-e9fc-4eb9-b830-8ff0545b5eea" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_TreasuryStockValueAcquiredCostMethod"/>
    <link:presentationArc order="9" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_681e2ed9-8efa-4ad0-b220-aa1af7744043" xlink:to="loc_us-gaap_TreasuryStockValueAcquiredCostMethod_acce64be-e9fc-4eb9-b830-8ff0545b5eea" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DividendsCommonStockCash_b0768548-e94b-4dd2-b165-4adf380c26f1" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DividendsCommonStockCash"/>
    <link:presentationArc order="10" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_681e2ed9-8efa-4ad0-b220-aa1af7744043" xlink:to="loc_us-gaap_DividendsCommonStockCash_b0768548-e94b-4dd2-b165-4adf380c26f1" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTax_45e8595c-a90b-4f18-b4c2-2da167ef8a27" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_OtherComprehensiveIncomeLossNetOfTax"/>
    <link:presentationArc order="11" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_681e2ed9-8efa-4ad0-b220-aa1af7744043" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTax_45e8595c-a90b-4f18-b4c2-2da167ef8a27" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest_62d98b64-2e3e-4052-91c5-d7ad4c871acd" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest"/>
    <link:presentationArc order="12" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_681e2ed9-8efa-4ad0-b220-aa1af7744043" xlink:to="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest_62d98b64-2e3e-4052-91c5-d7ad4c871acd" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/periodEndLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SharesIssued_7b16c27d-8a7f-4d7d-b63b-fa0b630f3298" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_SharesIssued"/>
    <link:presentationArc order="13" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_681e2ed9-8efa-4ad0-b220-aa1af7744043" xlink:to="loc_us-gaap_SharesIssued_7b16c27d-8a7f-4d7d-b63b-fa0b630f3298" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/periodEndLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.westpharma.com/role/SupplementalEquityInformationDetails" xlink:type="simple" xlink:href="wst-20200331.xsd#SupplementalEquityInformationDetails"/>
  <link:presentationLink xlink:role="http://www.westpharma.com/role/SupplementalEquityInformationDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquityAbstract_f266a4ef-3bd8-44f1-8f69-9708d805912d" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_EquityAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockDividendsPerShareDeclared_3a03cc05-fa61-48fe-b879-713702173d20" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_CommonStockDividendsPerShareDeclared"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_EquityAbstract_f266a4ef-3bd8-44f1-8f69-9708d805912d" xlink:to="loc_us-gaap_CommonStockDividendsPerShareDeclared_3a03cc05-fa61-48fe-b879-713702173d20" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.westpharma.com/role/StockBasedCompensation" xlink:type="simple" xlink:href="wst-20200331.xsd#StockBasedCompensation"/>
  <link:presentationLink xlink:role="http://www.westpharma.com/role/StockBasedCompensation" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract_a1423326-a233-4a9a-872d-f74962780ac8" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DisclosureOfCompensationRelatedCostsShareBasedPaymentsTextBlock_efe93b39-72e1-4887-8a9e-22a49612f013" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DisclosureOfCompensationRelatedCostsShareBasedPaymentsTextBlock"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract_a1423326-a233-4a9a-872d-f74962780ac8" xlink:to="loc_us-gaap_DisclosureOfCompensationRelatedCostsShareBasedPaymentsTextBlock_efe93b39-72e1-4887-8a9e-22a49612f013" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.westpharma.com/role/StockBasedCompensationDetails" xlink:type="simple" xlink:href="wst-20200331.xsd#StockBasedCompensationDetails"/>
  <link:presentationLink xlink:role="http://www.westpharma.com/role/StockBasedCompensationDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract_0cdf932d-bff5-48e5-b589-997f4096e479" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_a15d0286-5d15-4329-a401-cdaf10462cf5" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract_0cdf932d-bff5-48e5-b589-997f4096e479" xlink:to="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_a15d0286-5d15-4329-a401-cdaf10462cf5" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AwardTypeAxis_4c7db454-e4c8-4c50-9ecd-aee40717dd6c" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_AwardTypeAxis"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_a15d0286-5d15-4329-a401-cdaf10462cf5" xlink:to="loc_us-gaap_AwardTypeAxis_4c7db454-e4c8-4c50-9ecd-aee40717dd6c" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_39b06724-fbe8-4567-8b4d-a08f3ac0ea26" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_AwardTypeAxis_4c7db454-e4c8-4c50-9ecd-aee40717dd6c" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_39b06724-fbe8-4567-8b4d-a08f3ac0ea26" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PerformanceSharesMember_37d40b55-e403-4c19-90d2-6ac772292578" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_PerformanceSharesMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_39b06724-fbe8-4567-8b4d-a08f3ac0ea26" xlink:to="loc_us-gaap_PerformanceSharesMember_37d40b55-e403-4c19-90d2-6ac772292578" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestrictedStockUnitsRSUMember_7bab0a85-89bc-40a8-b8be-ba8496af1063" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_RestrictedStockUnitsRSUMember"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_39b06724-fbe8-4567-8b4d-a08f3ac0ea26" xlink:to="loc_us-gaap_RestrictedStockUnitsRSUMember_7bab0a85-89bc-40a8-b8be-ba8496af1063" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_429c3939-6bbf-43d7-9e03-f0add669e8cf" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_a15d0286-5d15-4329-a401-cdaf10462cf5" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_429c3939-6bbf-43d7-9e03-f0add669e8cf" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant_0ddc0cd1-d0ea-499c-b1fd-2cae63cfb90c" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_429c3939-6bbf-43d7-9e03-f0add669e8cf" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant_0ddc0cd1-d0ea-499c-b1fd-2cae63cfb90c" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriod_f004adf4-19be-485a-9372-296e54c52946" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriod"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_429c3939-6bbf-43d7-9e03-f0add669e8cf" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriod_f004adf4-19be-485a-9372-296e54c52946" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice_5bd024ce-5904-4a96-9d3a-25bb1e850781" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_429c3939-6bbf-43d7-9e03-f0add669e8cf" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice_5bd024ce-5904-4a96-9d3a-25bb1e850781" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue_6eb7eb6e-c693-413f-8d44-09aaecaebd94" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_429c3939-6bbf-43d7-9e03-f0add669e8cf" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue_6eb7eb6e-c693-413f-8d44-09aaecaebd94" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate_9339e393-491a-4e37-aa49-d59d71ade0a2" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate"/>
    <link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_429c3939-6bbf-43d7-9e03-f0add669e8cf" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate_9339e393-491a-4e37-aa49-d59d71ade0a2" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1_4d0e6a6c-8f4f-44f4-9214-1842996a8741" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1"/>
    <link:presentationArc order="6" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_429c3939-6bbf-43d7-9e03-f0add669e8cf" xlink:to="loc_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1_4d0e6a6c-8f4f-44f4-9214-1842996a8741" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate_f2e282b6-a881-4942-81fc-10bfff8fd78e" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate"/>
    <link:presentationArc order="7" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_429c3939-6bbf-43d7-9e03-f0add669e8cf" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate_f2e282b6-a881-4942-81fc-10bfff8fd78e" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate_17b8beb9-d916-4ee2-b798-4eddd0f3aa79" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate"/>
    <link:presentationArc order="8" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_429c3939-6bbf-43d7-9e03-f0add669e8cf" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate_17b8beb9-d916-4ee2-b798-4eddd0f3aa79" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod_731daa2a-942b-419a-9454-480274e7b676" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod"/>
    <link:presentationArc order="9" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_429c3939-6bbf-43d7-9e03-f0add669e8cf" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod_731daa2a-942b-419a-9454-480274e7b676" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue_1567bc05-0f1c-40aa-b701-b9a0df34b4dc" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue"/>
    <link:presentationArc order="10" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_429c3939-6bbf-43d7-9e03-f0add669e8cf" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue_1567bc05-0f1c-40aa-b701-b9a0df34b4dc" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_wst_PvsPayoutMinimum_0827b8ef-25b8-4f6d-a5b6-0300ec23e579" xlink:href="wst-20200331.xsd#wst_PvsPayoutMinimum"/>
    <link:presentationArc order="11" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_429c3939-6bbf-43d7-9e03-f0add669e8cf" xlink:to="loc_wst_PvsPayoutMinimum_0827b8ef-25b8-4f6d-a5b6-0300ec23e579" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_wst_PvsPayoutMaximum_c795b47d-10e2-4187-ba3a-f287c4792850" xlink:href="wst-20200331.xsd#wst_PvsPayoutMaximum"/>
    <link:presentationArc order="12" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_429c3939-6bbf-43d7-9e03-f0add669e8cf" xlink:to="loc_wst_PvsPayoutMaximum_c795b47d-10e2-4187-ba3a-f287c4792850" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AllocatedShareBasedCompensationExpense_4e8c231c-ceac-4e32-8835-869704a6df6a" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_AllocatedShareBasedCompensationExpense"/>
    <link:presentationArc order="13" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_429c3939-6bbf-43d7-9e03-f0add669e8cf" xlink:to="loc_us-gaap_AllocatedShareBasedCompensationExpense_4e8c231c-ceac-4e32-8835-869704a6df6a" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.westpharma.com/role/BenefitPlans" xlink:type="simple" xlink:href="wst-20200331.xsd#BenefitPlans"/>
  <link:presentationLink xlink:role="http://www.westpharma.com/role/BenefitPlans" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DefinedBenefitPlansAndOtherPostretirementBenefitPlansDisclosuresAbstract_2461b1a0-a505-43d4-b8fc-ccab320c0fc8" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DefinedBenefitPlansAndOtherPostretirementBenefitPlansDisclosuresAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PensionAndOtherPostretirementBenefitsDisclosureTextBlock_523e8143-83ae-4020-98bd-6f11f88bd6dc" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_PensionAndOtherPostretirementBenefitsDisclosureTextBlock"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DefinedBenefitPlansAndOtherPostretirementBenefitPlansDisclosuresAbstract_2461b1a0-a505-43d4-b8fc-ccab320c0fc8" xlink:to="loc_us-gaap_PensionAndOtherPostretirementBenefitsDisclosureTextBlock_523e8143-83ae-4020-98bd-6f11f88bd6dc" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.westpharma.com/role/BenefitPlansTables" xlink:type="simple" xlink:href="wst-20200331.xsd#BenefitPlansTables"/>
  <link:presentationLink xlink:role="http://www.westpharma.com/role/BenefitPlansTables" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DefinedBenefitPlansAndOtherPostretirementBenefitPlansDisclosuresAbstract_1331afe7-e8cf-45e5-b996-0338d1864adc" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DefinedBenefitPlansAndOtherPostretirementBenefitPlansDisclosuresAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfNetBenefitCostsTableTextBlock_9d316f5f-2b83-4801-93b4-065eb862a196" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ScheduleOfNetBenefitCostsTableTextBlock"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DefinedBenefitPlansAndOtherPostretirementBenefitPlansDisclosuresAbstract_1331afe7-e8cf-45e5-b996-0338d1864adc" xlink:to="loc_us-gaap_ScheduleOfNetBenefitCostsTableTextBlock_9d316f5f-2b83-4801-93b4-065eb862a196" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.westpharma.com/role/BenefitPlansDetails" xlink:type="simple" xlink:href="wst-20200331.xsd#BenefitPlansDetails"/>
  <link:presentationLink xlink:role="http://www.westpharma.com/role/BenefitPlansDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DefinedBenefitPlansAndOtherPostretirementBenefitPlansDisclosuresAbstract_d21b51c3-2abe-427c-882a-822fbf174fa2" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DefinedBenefitPlansAndOtherPostretirementBenefitPlansDisclosuresAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DefinedBenefitPlansAndOtherPostretirementBenefitPlansDisclosuresTable_b09551e7-60c2-43f0-b8ac-aad68f61de68" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DefinedBenefitPlansAndOtherPostretirementBenefitPlansDisclosuresTable"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DefinedBenefitPlansAndOtherPostretirementBenefitPlansDisclosuresAbstract_d21b51c3-2abe-427c-882a-822fbf174fa2" xlink:to="loc_us-gaap_DefinedBenefitPlansAndOtherPostretirementBenefitPlansDisclosuresTable_b09551e7-60c2-43f0-b8ac-aad68f61de68" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeStatementLocationAxis_da370d73-8868-4f74-a1c9-eb207d8a6492" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_IncomeStatementLocationAxis"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DefinedBenefitPlansAndOtherPostretirementBenefitPlansDisclosuresTable_b09551e7-60c2-43f0-b8ac-aad68f61de68" xlink:to="loc_us-gaap_IncomeStatementLocationAxis_da370d73-8868-4f74-a1c9-eb207d8a6492" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeStatementLocationDomain_1497019e-5d59-46c2-8ca9-761acc57d8cb" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_IncomeStatementLocationDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeStatementLocationAxis_da370d73-8868-4f74-a1c9-eb207d8a6492" xlink:to="loc_us-gaap_IncomeStatementLocationDomain_1497019e-5d59-46c2-8ca9-761acc57d8cb" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherNonoperatingIncomeExpenseMember_5e4a39d0-cb4a-487c-94cf-1d43dfd4aa68" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_OtherNonoperatingIncomeExpenseMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeStatementLocationDomain_1497019e-5d59-46c2-8ca9-761acc57d8cb" xlink:to="loc_us-gaap_OtherNonoperatingIncomeExpenseMember_5e4a39d0-cb4a-487c-94cf-1d43dfd4aa68" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RetirementPlanTypeAxis_9c7dd40e-b87b-45df-b90e-583f7d4c7cdc" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_RetirementPlanTypeAxis"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DefinedBenefitPlansAndOtherPostretirementBenefitPlansDisclosuresTable_b09551e7-60c2-43f0-b8ac-aad68f61de68" xlink:to="loc_us-gaap_RetirementPlanTypeAxis_9c7dd40e-b87b-45df-b90e-583f7d4c7cdc" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RetirementPlanTypeDomain_4125c362-0fcc-49ec-9f58-85a097b77339" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_RetirementPlanTypeDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RetirementPlanTypeAxis_9c7dd40e-b87b-45df-b90e-583f7d4c7cdc" xlink:to="loc_us-gaap_RetirementPlanTypeDomain_4125c362-0fcc-49ec-9f58-85a097b77339" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PensionPlansDefinedBenefitMember_be49c106-d514-45e6-94e1-dc161a2b4ff0" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_PensionPlansDefinedBenefitMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RetirementPlanTypeDomain_4125c362-0fcc-49ec-9f58-85a097b77339" xlink:to="loc_us-gaap_PensionPlansDefinedBenefitMember_be49c106-d514-45e6-94e1-dc161a2b4ff0" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherPostretirementBenefitPlansDefinedBenefitMember_9840cfc3-7155-4517-9a08-df8f1f5d3bca" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_OtherPostretirementBenefitPlansDefinedBenefitMember"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RetirementPlanTypeDomain_4125c362-0fcc-49ec-9f58-85a097b77339" xlink:to="loc_us-gaap_OtherPostretirementBenefitPlansDefinedBenefitMember_9840cfc3-7155-4517-9a08-df8f1f5d3bca" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RetirementPlanSponsorLocationAxis_22a98f47-3c1e-4038-b1d7-728b60f6668d" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_RetirementPlanSponsorLocationAxis"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DefinedBenefitPlansAndOtherPostretirementBenefitPlansDisclosuresTable_b09551e7-60c2-43f0-b8ac-aad68f61de68" xlink:to="loc_us-gaap_RetirementPlanSponsorLocationAxis_22a98f47-3c1e-4038-b1d7-728b60f6668d" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RetirementPlanSponsorLocationDomain_e3613c00-e9fb-43fa-9f65-c8e956b25481" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_RetirementPlanSponsorLocationDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RetirementPlanSponsorLocationAxis_22a98f47-3c1e-4038-b1d7-728b60f6668d" xlink:to="loc_us-gaap_RetirementPlanSponsorLocationDomain_e3613c00-e9fb-43fa-9f65-c8e956b25481" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_country_US_7355e43c-bf67-4b21-88f7-00f4acc3cd9f" xlink:href="https://xbrl.sec.gov/country/2017/country-2017-01-31.xsd#country_US"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RetirementPlanSponsorLocationDomain_e3613c00-e9fb-43fa-9f65-c8e956b25481" xlink:to="loc_country_US_7355e43c-bf67-4b21-88f7-00f4acc3cd9f" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ForeignPlanMember_5223e577-5fbf-45f5-811d-161178a5305e" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ForeignPlanMember"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RetirementPlanSponsorLocationDomain_e3613c00-e9fb-43fa-9f65-c8e956b25481" xlink:to="loc_us-gaap_ForeignPlanMember_5223e577-5fbf-45f5-811d-161178a5305e" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DefinedBenefitPlansAndOtherPostretirementBenefitPlansTableTextBlockLineItems_168797e6-40d8-443b-9afd-906c23ded17e" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DefinedBenefitPlansAndOtherPostretirementBenefitPlansTableTextBlockLineItems"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DefinedBenefitPlansAndOtherPostretirementBenefitPlansDisclosuresTable_b09551e7-60c2-43f0-b8ac-aad68f61de68" xlink:to="loc_us-gaap_DefinedBenefitPlansAndOtherPostretirementBenefitPlansTableTextBlockLineItems_168797e6-40d8-443b-9afd-906c23ded17e" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DefinedBenefitPlanServiceCost_f957e3a7-5948-4201-a8be-cf638c2fae4d" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DefinedBenefitPlanServiceCost"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DefinedBenefitPlansAndOtherPostretirementBenefitPlansTableTextBlockLineItems_168797e6-40d8-443b-9afd-906c23ded17e" xlink:to="loc_us-gaap_DefinedBenefitPlanServiceCost_f957e3a7-5948-4201-a8be-cf638c2fae4d" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DefinedBenefitPlanInterestCost_e3fa98d6-90a8-4032-9f3f-9228c536c6c2" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DefinedBenefitPlanInterestCost"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DefinedBenefitPlansAndOtherPostretirementBenefitPlansTableTextBlockLineItems_168797e6-40d8-443b-9afd-906c23ded17e" xlink:to="loc_us-gaap_DefinedBenefitPlanInterestCost_e3fa98d6-90a8-4032-9f3f-9228c536c6c2" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DefinedBenefitPlanExpectedReturnOnPlanAssets_6ac07aac-3692-49b2-b2e9-268439b405f8" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DefinedBenefitPlanExpectedReturnOnPlanAssets"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DefinedBenefitPlansAndOtherPostretirementBenefitPlansTableTextBlockLineItems_168797e6-40d8-443b-9afd-906c23ded17e" xlink:to="loc_us-gaap_DefinedBenefitPlanExpectedReturnOnPlanAssets_6ac07aac-3692-49b2-b2e9-268439b405f8" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DefinedBenefitPlanAmortizationOfPriorServiceCostCredit_36746ffb-b9ff-42a8-9fa7-c235c4e777da" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DefinedBenefitPlanAmortizationOfPriorServiceCostCredit"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DefinedBenefitPlansAndOtherPostretirementBenefitPlansTableTextBlockLineItems_168797e6-40d8-443b-9afd-906c23ded17e" xlink:to="loc_us-gaap_DefinedBenefitPlanAmortizationOfPriorServiceCostCredit_36746ffb-b9ff-42a8-9fa7-c235c4e777da" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DefinedBenefitPlanActuarialGainLoss_5aa917d9-d742-445f-a7fb-0a6a311e0c17" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DefinedBenefitPlanActuarialGainLoss"/>
    <link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DefinedBenefitPlansAndOtherPostretirementBenefitPlansTableTextBlockLineItems_168797e6-40d8-443b-9afd-906c23ded17e" xlink:to="loc_us-gaap_DefinedBenefitPlanActuarialGainLoss_5aa917d9-d742-445f-a7fb-0a6a311e0c17" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DefinedBenefitPlanRecognizedNetGainLossDueToSettlements1_e3f3bd05-6990-4844-b61d-dea0fb9d2634" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DefinedBenefitPlanRecognizedNetGainLossDueToSettlements1"/>
    <link:presentationArc order="6" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DefinedBenefitPlansAndOtherPostretirementBenefitPlansTableTextBlockLineItems_168797e6-40d8-443b-9afd-906c23ded17e" xlink:to="loc_us-gaap_DefinedBenefitPlanRecognizedNetGainLossDueToSettlements1_e3f3bd05-6990-4844-b61d-dea0fb9d2634" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost_8c1c67f2-5b0e-46a2-b9de-afcf8842aa6c" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost"/>
    <link:presentationArc order="7" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_DefinedBenefitPlansAndOtherPostretirementBenefitPlansTableTextBlockLineItems_168797e6-40d8-443b-9afd-906c23ded17e" xlink:to="loc_us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost_8c1c67f2-5b0e-46a2-b9de-afcf8842aa6c" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/totalLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.westpharma.com/role/OtherExpense" xlink:type="simple" xlink:href="wst-20200331.xsd#OtherExpense"/>
  <link:presentationLink xlink:role="http://www.westpharma.com/role/OtherExpense" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherIncomeAndExpensesAbstract_5a46f8ac-907c-4893-a98a-79f08f0f7d32" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_OtherIncomeAndExpensesAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherIncomeAndOtherExpenseDisclosureTextBlock_4091e334-3fe4-44db-86dc-d18327537aac" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_OtherIncomeAndOtherExpenseDisclosureTextBlock"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OtherIncomeAndExpensesAbstract_5a46f8ac-907c-4893-a98a-79f08f0f7d32" xlink:to="loc_us-gaap_OtherIncomeAndOtherExpenseDisclosureTextBlock_4091e334-3fe4-44db-86dc-d18327537aac" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.westpharma.com/role/OtherExpenseTables" xlink:type="simple" xlink:href="wst-20200331.xsd#OtherExpenseTables"/>
  <link:presentationLink xlink:role="http://www.westpharma.com/role/OtherExpenseTables" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherIncomeAndExpensesAbstract_eada902e-35ed-4b50-88ec-d3a6e52b9cd8" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_OtherIncomeAndExpensesAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_wst_ScheduleofOtherIncomeandExpensebyComponentTableTextBlock_8d3d9a59-8c7c-4d2f-b6c2-f8a6c767282d" xlink:href="wst-20200331.xsd#wst_ScheduleofOtherIncomeandExpensebyComponentTableTextBlock"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OtherIncomeAndExpensesAbstract_eada902e-35ed-4b50-88ec-d3a6e52b9cd8" xlink:to="loc_wst_ScheduleofOtherIncomeandExpensebyComponentTableTextBlock_8d3d9a59-8c7c-4d2f-b6c2-f8a6c767282d" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfRestructuringReserveByTypeOfCostTextBlock_f9aed25c-05de-4fb4-8e2e-01d6f5f5b0a7" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ScheduleOfRestructuringReserveByTypeOfCostTextBlock"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OtherIncomeAndExpensesAbstract_eada902e-35ed-4b50-88ec-d3a6e52b9cd8" xlink:to="loc_us-gaap_ScheduleOfRestructuringReserveByTypeOfCostTextBlock_f9aed25c-05de-4fb4-8e2e-01d6f5f5b0a7" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.westpharma.com/role/OtherExpenseDetails" xlink:type="simple" xlink:href="wst-20200331.xsd#OtherExpenseDetails"/>
  <link:presentationLink xlink:role="http://www.westpharma.com/role/OtherExpenseDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherIncomeAndExpensesAbstract_72f21b17-a3f1-42d9-86d0-caab42719be9" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_OtherIncomeAndExpensesAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SeveranceCosts1_83bd0d3f-e637-4d97-a279-a0f14f7c0697" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_SeveranceCosts1"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OtherIncomeAndExpensesAbstract_72f21b17-a3f1-42d9-86d0-caab42719be9" xlink:to="loc_us-gaap_SeveranceCosts1_83bd0d3f-e637-4d97-a279-a0f14f7c0697" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetImpairmentCharges_30b31162-071a-4291-ac30-496661ad41c8" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_AssetImpairmentCharges"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OtherIncomeAndExpensesAbstract_72f21b17-a3f1-42d9-86d0-caab42719be9" xlink:to="loc_us-gaap_AssetImpairmentCharges_30b31162-071a-4291-ac30-496661ad41c8" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherRestructuringCosts_55aede1e-a7c0-4c56-befe-258fcda5589e" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_OtherRestructuringCosts"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OtherIncomeAndExpensesAbstract_72f21b17-a3f1-42d9-86d0-caab42719be9" xlink:to="loc_us-gaap_OtherRestructuringCosts_55aede1e-a7c0-4c56-befe-258fcda5589e" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestructuringAndRelatedCostIncurredCost_4bf9183b-1e85-4526-b15b-6cc7e841445b" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_RestructuringAndRelatedCostIncurredCost"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OtherIncomeAndExpensesAbstract_72f21b17-a3f1-42d9-86d0-caab42719be9" xlink:to="loc_us-gaap_RestructuringAndRelatedCostIncurredCost_4bf9183b-1e85-4526-b15b-6cc7e841445b" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/totalLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_wst_Developmentandlicensingincome_6a45a44c-0362-42a8-8be4-87dcee85a319" xlink:href="wst-20200331.xsd#wst_Developmentandlicensingincome"/>
    <link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OtherIncomeAndExpensesAbstract_72f21b17-a3f1-42d9-86d0-caab42719be9" xlink:to="loc_wst_Developmentandlicensingincome_6a45a44c-0362-42a8-8be4-87dcee85a319" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessCombinationContingentConsiderationArrangementsChangeInAmountOfContingentConsiderationLiability1_e6334dcb-e234-46bd-ba2c-3ccb51196539" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_BusinessCombinationContingentConsiderationArrangementsChangeInAmountOfContingentConsiderationLiability1"/>
    <link:presentationArc order="6" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OtherIncomeAndExpensesAbstract_72f21b17-a3f1-42d9-86d0-caab42719be9" xlink:to="loc_us-gaap_BusinessCombinationContingentConsiderationArrangementsChangeInAmountOfContingentConsiderationLiability1_e6334dcb-e234-46bd-ba2c-3ccb51196539" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ForeignCurrencyTransactionGainLossBeforeTax_6964e57b-5ad1-4343-83c1-b36f1db5f62e" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ForeignCurrencyTransactionGainLossBeforeTax"/>
    <link:presentationArc order="7" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OtherIncomeAndExpensesAbstract_72f21b17-a3f1-42d9-86d0-caab42719be9" xlink:to="loc_us-gaap_ForeignCurrencyTransactionGainLossBeforeTax_6964e57b-5ad1-4343-83c1-b36f1db5f62e" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherOperatingIncomeExpenseNet_5a86b042-43c4-4a5b-bd37-e51df9188077" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_OtherOperatingIncomeExpenseNet"/>
    <link:presentationArc order="8" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OtherIncomeAndExpensesAbstract_72f21b17-a3f1-42d9-86d0-caab42719be9" xlink:to="loc_us-gaap_OtherOperatingIncomeExpenseNet_5a86b042-43c4-4a5b-bd37-e51df9188077" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_wst_OtherIncomeExpense_9a112800-3efb-497f-8f15-b3f0f400f5b5" xlink:href="wst-20200331.xsd#wst_OtherIncomeExpense"/>
    <link:presentationArc order="9" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OtherIncomeAndExpensesAbstract_72f21b17-a3f1-42d9-86d0-caab42719be9" xlink:to="loc_wst_OtherIncomeExpense_9a112800-3efb-497f-8f15-b3f0f400f5b5" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedTotalLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.westpharma.com/role/OtherExpenseRestructuringandRelatedChargesDetails" xlink:type="simple" xlink:href="wst-20200331.xsd#OtherExpenseRestructuringandRelatedChargesDetails"/>
  <link:presentationLink xlink:role="http://www.westpharma.com/role/OtherExpenseRestructuringandRelatedChargesDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherIncomeAndExpensesAbstract_901255f8-ffc9-4a6f-8319-c1511b542fa7" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_OtherIncomeAndExpensesAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfRestructuringAndRelatedCostsTable_b5d841b3-0ee4-41f9-a134-b86fa882b433" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ScheduleOfRestructuringAndRelatedCostsTable"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OtherIncomeAndExpensesAbstract_901255f8-ffc9-4a6f-8319-c1511b542fa7" xlink:to="loc_us-gaap_ScheduleOfRestructuringAndRelatedCostsTable_b5d841b3-0ee4-41f9-a134-b86fa882b433" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestructuringPlanAxis_0aafcbb2-c725-4198-b506-ea9844aee8c8" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_RestructuringPlanAxis"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfRestructuringAndRelatedCostsTable_b5d841b3-0ee4-41f9-a134-b86fa882b433" xlink:to="loc_us-gaap_RestructuringPlanAxis_0aafcbb2-c725-4198-b506-ea9844aee8c8" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestructuringPlanDomain_ec7172b2-1b17-43f3-96d5-45d9fcf4fda8" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_RestructuringPlanDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RestructuringPlanAxis_0aafcbb2-c725-4198-b506-ea9844aee8c8" xlink:to="loc_us-gaap_RestructuringPlanDomain_ec7172b2-1b17-43f3-96d5-45d9fcf4fda8" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_wst_A2018RestructuringPlanMember_774c8714-cab1-431a-a839-e87fd7a85231" xlink:href="wst-20200331.xsd#wst_A2018RestructuringPlanMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RestructuringPlanDomain_ec7172b2-1b17-43f3-96d5-45d9fcf4fda8" xlink:to="loc_wst_A2018RestructuringPlanMember_774c8714-cab1-431a-a839-e87fd7a85231" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_wst_A2016RestructuringPlanMemberMember_a46a956e-dc91-4c3b-aa2e-74a0ac0f34c9" xlink:href="wst-20200331.xsd#wst_A2016RestructuringPlanMemberMember"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RestructuringPlanDomain_ec7172b2-1b17-43f3-96d5-45d9fcf4fda8" xlink:to="loc_wst_A2016RestructuringPlanMemberMember_a46a956e-dc91-4c3b-aa2e-74a0ac0f34c9" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestructuringCostAndReserveAxis_4d3861c1-d616-4fff-99d6-f5c7bf3d3a3e" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_RestructuringCostAndReserveAxis"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfRestructuringAndRelatedCostsTable_b5d841b3-0ee4-41f9-a134-b86fa882b433" xlink:to="loc_us-gaap_RestructuringCostAndReserveAxis_4d3861c1-d616-4fff-99d6-f5c7bf3d3a3e" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TypeOfRestructuringDomain_0735bb6e-0558-4c7c-b58a-7600e475c02d" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_TypeOfRestructuringDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RestructuringCostAndReserveAxis_4d3861c1-d616-4fff-99d6-f5c7bf3d3a3e" xlink:to="loc_us-gaap_TypeOfRestructuringDomain_0735bb6e-0558-4c7c-b58a-7600e475c02d" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EmployeeSeveranceMember_5ba1932f-d368-49a9-ae93-edb26c672c88" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_EmployeeSeveranceMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_TypeOfRestructuringDomain_0735bb6e-0558-4c7c-b58a-7600e475c02d" xlink:to="loc_us-gaap_EmployeeSeveranceMember_5ba1932f-d368-49a9-ae93-edb26c672c88" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_wst_AssetRelatedChargesMember_9b7d4393-247c-4861-ada4-ccfe49fa00f7" xlink:href="wst-20200331.xsd#wst_AssetRelatedChargesMember"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_TypeOfRestructuringDomain_0735bb6e-0558-4c7c-b58a-7600e475c02d" xlink:to="loc_wst_AssetRelatedChargesMember_9b7d4393-247c-4861-ada4-ccfe49fa00f7" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherRestructuringMember_3451adcd-32c0-42d2-8d91-2701a0712ef9" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_OtherRestructuringMember"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_TypeOfRestructuringDomain_0735bb6e-0558-4c7c-b58a-7600e475c02d" xlink:to="loc_us-gaap_OtherRestructuringMember_3451adcd-32c0-42d2-8d91-2701a0712ef9" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestructuringCostAndReserveLineItems_0df4e8a6-6990-44e4-a9ec-f595212a2d42" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_RestructuringCostAndReserveLineItems"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ScheduleOfRestructuringAndRelatedCostsTable_b5d841b3-0ee4-41f9-a134-b86fa882b433" xlink:to="loc_us-gaap_RestructuringCostAndReserveLineItems_0df4e8a6-6990-44e4-a9ec-f595212a2d42" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestructuringAndRelatedCostExpectedCost1_7090cead-7dbc-4b70-a418-344c91dd1976" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_RestructuringAndRelatedCostExpectedCost1"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RestructuringCostAndReserveLineItems_0df4e8a6-6990-44e4-a9ec-f595212a2d42" xlink:to="loc_us-gaap_RestructuringAndRelatedCostExpectedCost1_7090cead-7dbc-4b70-a418-344c91dd1976" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestructuringAndRelatedCostCostIncurredToDate1_af08da03-ad93-45fe-87cf-971b4c2dfd94" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_RestructuringAndRelatedCostCostIncurredToDate1"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RestructuringCostAndReserveLineItems_0df4e8a6-6990-44e4-a9ec-f595212a2d42" xlink:to="loc_us-gaap_RestructuringAndRelatedCostCostIncurredToDate1_af08da03-ad93-45fe-87cf-971b4c2dfd94" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SeveranceCosts1_c967671c-2b87-4d0f-a074-797fd5219548" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_SeveranceCosts1"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RestructuringCostAndReserveLineItems_0df4e8a6-6990-44e4-a9ec-f595212a2d42" xlink:to="loc_us-gaap_SeveranceCosts1_c967671c-2b87-4d0f-a074-797fd5219548" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_wst_AssetImpairmentChargesPatentandEquipment_a1ba31b3-18a1-45e0-b6b0-cca2286b1012" xlink:href="wst-20200331.xsd#wst_AssetImpairmentChargesPatentandEquipment"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RestructuringCostAndReserveLineItems_0df4e8a6-6990-44e4-a9ec-f595212a2d42" xlink:to="loc_wst_AssetImpairmentChargesPatentandEquipment_a1ba31b3-18a1-45e0-b6b0-cca2286b1012" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherRestructuringCosts_1c89b27c-b3f9-47a8-b25d-e42b12fc6d82" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_OtherRestructuringCosts"/>
    <link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RestructuringCostAndReserveLineItems_0df4e8a6-6990-44e4-a9ec-f595212a2d42" xlink:to="loc_us-gaap_OtherRestructuringCosts_1c89b27c-b3f9-47a8-b25d-e42b12fc6d82" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestructuringCharges_f509d09b-b468-4483-b73d-51a06632d102" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_RestructuringCharges"/>
    <link:presentationArc order="6" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RestructuringCostAndReserveLineItems_0df4e8a6-6990-44e4-a9ec-f595212a2d42" xlink:to="loc_us-gaap_RestructuringCharges_f509d09b-b468-4483-b73d-51a06632d102" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestructuringReserveRollForward_58b587ce-e79f-4cc3-82fe-1a73d427749c" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_RestructuringReserveRollForward"/>
    <link:presentationArc order="7" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RestructuringCostAndReserveLineItems_0df4e8a6-6990-44e4-a9ec-f595212a2d42" xlink:to="loc_us-gaap_RestructuringReserveRollForward_58b587ce-e79f-4cc3-82fe-1a73d427749c" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestructuringReserve_4788d0a5-5429-421c-995d-ff32d5931546" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_RestructuringReserve"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RestructuringReserveRollForward_58b587ce-e79f-4cc3-82fe-1a73d427749c" xlink:to="loc_us-gaap_RestructuringReserve_4788d0a5-5429-421c-995d-ff32d5931546" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/periodStartLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestructuringAndRelatedCostIncurredCost_dbe06267-a831-4423-9d27-552e1eeeaca9" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_RestructuringAndRelatedCostIncurredCost"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RestructuringReserveRollForward_58b587ce-e79f-4cc3-82fe-1a73d427749c" xlink:to="loc_us-gaap_RestructuringAndRelatedCostIncurredCost_dbe06267-a831-4423-9d27-552e1eeeaca9" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsForRestructuring_2441e7a6-e507-4ee6-bfc4-a09a98d39a28" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_PaymentsForRestructuring"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RestructuringReserveRollForward_58b587ce-e79f-4cc3-82fe-1a73d427749c" xlink:to="loc_us-gaap_PaymentsForRestructuring_2441e7a6-e507-4ee6-bfc4-a09a98d39a28" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestructuringReserveSettledWithoutCash2_e354b9f6-f3b6-436d-a7ee-6a9f493bdf7d" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_RestructuringReserveSettledWithoutCash2"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RestructuringReserveRollForward_58b587ce-e79f-4cc3-82fe-1a73d427749c" xlink:to="loc_us-gaap_RestructuringReserveSettledWithoutCash2_e354b9f6-f3b6-436d-a7ee-6a9f493bdf7d" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestructuringReserve_8cc5f527-8b81-46fb-889c-009e35befe04" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_RestructuringReserve"/>
    <link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_RestructuringReserveRollForward_58b587ce-e79f-4cc3-82fe-1a73d427749c" xlink:to="loc_us-gaap_RestructuringReserve_8cc5f527-8b81-46fb-889c-009e35befe04" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/periodEndLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.westpharma.com/role/OtherExpenseOtherIncomeDevelopmentandLicensingIncomeDetails" xlink:type="simple" xlink:href="wst-20200331.xsd#OtherExpenseOtherIncomeDevelopmentandLicensingIncomeDetails"/>
  <link:presentationLink xlink:role="http://www.westpharma.com/role/OtherExpenseOtherIncomeDevelopmentandLicensingIncomeDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherIncomeAndExpensesAbstract_4b63ac41-58c2-42c6-a091-c6929394fc60" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_OtherIncomeAndExpensesAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_wst_DevelopmentandlicensingincomeTable_8e217f97-19c5-4788-8e2f-d550e33ee4d1" xlink:href="wst-20200331.xsd#wst_DevelopmentandlicensingincomeTable"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_OtherIncomeAndExpensesAbstract_4b63ac41-58c2-42c6-a091-c6929394fc60" xlink:to="loc_wst_DevelopmentandlicensingincomeTable_8e217f97-19c5-4788-8e2f-d550e33ee4d1" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NatureOfExpenseAxis_70a7c54b-ce11-4919-b589-22509c9a12c8" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_NatureOfExpenseAxis"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_wst_DevelopmentandlicensingincomeTable_8e217f97-19c5-4788-8e2f-d550e33ee4d1" xlink:to="loc_us-gaap_NatureOfExpenseAxis_70a7c54b-ce11-4919-b589-22509c9a12c8" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InterimPeriodCostsNotAllocableDomain_cee32e98-b807-4e84-b077-fd52200f1878" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_InterimPeriodCostsNotAllocableDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_NatureOfExpenseAxis_70a7c54b-ce11-4919-b589-22509c9a12c8" xlink:to="loc_us-gaap_InterimPeriodCostsNotAllocableDomain_cee32e98-b807-4e84-b077-fd52200f1878" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_wst_SmartDoseMember_ac131fb8-ccc9-42bd-8e2a-9e09f0349815" xlink:href="wst-20200331.xsd#wst_SmartDoseMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_InterimPeriodCostsNotAllocableDomain_cee32e98-b807-4e84-b077-fd52200f1878" xlink:to="loc_wst_SmartDoseMember_ac131fb8-ccc9-42bd-8e2a-9e09f0349815" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_wst_OtherMember_dccd283d-001c-4eb7-8a1d-7b9eb3c81b23" xlink:href="wst-20200331.xsd#wst_OtherMember"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_InterimPeriodCostsNotAllocableDomain_cee32e98-b807-4e84-b077-fd52200f1878" xlink:to="loc_wst_OtherMember_dccd283d-001c-4eb7-8a1d-7b9eb3c81b23" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_wst_DevelopmentandlicensingincomeLineItems_2a216264-be97-4331-882c-97b6a1ceba9b" xlink:href="wst-20200331.xsd#wst_DevelopmentandlicensingincomeLineItems"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_wst_DevelopmentandlicensingincomeTable_8e217f97-19c5-4788-8e2f-d550e33ee4d1" xlink:to="loc_wst_DevelopmentandlicensingincomeLineItems_2a216264-be97-4331-882c-97b6a1ceba9b" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_wst_Developmentandlicensingincome_fca66cf9-05bb-4d16-9ede-0d13469f3dbd" xlink:href="wst-20200331.xsd#wst_Developmentandlicensingincome"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_wst_DevelopmentandlicensingincomeLineItems_2a216264-be97-4331-882c-97b6a1ceba9b" xlink:to="loc_wst_Developmentandlicensingincome_fca66cf9-05bb-4d16-9ede-0d13469f3dbd" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ContractWithCustomerLiability_235e136c-7b43-4041-88ef-76c76e641dd0" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ContractWithCustomerLiability"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_wst_DevelopmentandlicensingincomeLineItems_2a216264-be97-4331-882c-97b6a1ceba9b" xlink:to="loc_us-gaap_ContractWithCustomerLiability_235e136c-7b43-4041-88ef-76c76e641dd0" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.westpharma.com/role/IncomeTaxes" xlink:type="simple" xlink:href="wst-20200331.xsd#IncomeTaxes"/>
  <link:presentationLink xlink:role="http://www.westpharma.com/role/IncomeTaxes" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeTaxDisclosureAbstract_48844091-89de-4f69-9f57-e6b739984ff6" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_IncomeTaxDisclosureAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeTaxDisclosureTextBlock_c01f732e-aeaf-48bd-9b66-8f0a7d3e7504" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_IncomeTaxDisclosureTextBlock"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeTaxDisclosureAbstract_48844091-89de-4f69-9f57-e6b739984ff6" xlink:to="loc_us-gaap_IncomeTaxDisclosureTextBlock_c01f732e-aeaf-48bd-9b66-8f0a7d3e7504" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.westpharma.com/role/IncomeTaxesDetails" xlink:type="simple" xlink:href="wst-20200331.xsd#IncomeTaxesDetails"/>
  <link:presentationLink xlink:role="http://www.westpharma.com/role/IncomeTaxesDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeTaxDisclosureAbstract_4ec31355-abbe-47e0-ac72-3fdfcaedd0ab" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_IncomeTaxDisclosureAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeTaxExpenseBenefit_08de962a-baef-4644-aa1d-cd2b198e9d85" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_IncomeTaxExpenseBenefit"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeTaxDisclosureAbstract_4ec31355-abbe-47e0-ac72-3fdfcaedd0ab" xlink:to="loc_us-gaap_IncomeTaxExpenseBenefit_08de962a-baef-4644-aa1d-cd2b198e9d85" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EffectiveIncomeTaxRateContinuingOperations_e37ea722-f2bb-4b57-ab91-fb428c3bd6ea" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_EffectiveIncomeTaxRateContinuingOperations"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeTaxDisclosureAbstract_4ec31355-abbe-47e0-ac72-3fdfcaedd0ab" xlink:to="loc_us-gaap_EffectiveIncomeTaxRateContinuingOperations_e37ea722-f2bb-4b57-ab91-fb428c3bd6ea" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherIncomeTaxExpenseBenefitContinuingOperations_07986fa8-0773-47a3-8949-03b94ffd954f" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_OtherIncomeTaxExpenseBenefitContinuingOperations"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeTaxDisclosureAbstract_4ec31355-abbe-47e0-ac72-3fdfcaedd0ab" xlink:to="loc_us-gaap_OtherIncomeTaxExpenseBenefitContinuingOperations_07986fa8-0773-47a3-8949-03b94ffd954f" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeTaxReconciliationRepatriationOfForeignEarnings_80d5c19f-edbf-4297-8005-ea5bb6ec7662" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_IncomeTaxReconciliationRepatriationOfForeignEarnings"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_IncomeTaxDisclosureAbstract_4ec31355-abbe-47e0-ac72-3fdfcaedd0ab" xlink:to="loc_us-gaap_IncomeTaxReconciliationRepatriationOfForeignEarnings_80d5c19f-edbf-4297-8005-ea5bb6ec7662" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.westpharma.com/role/CommitmentsandContingencies" xlink:type="simple" xlink:href="wst-20200331.xsd#CommitmentsandContingencies"/>
  <link:presentationLink xlink:role="http://www.westpharma.com/role/CommitmentsandContingencies" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommitmentsAndContingenciesDisclosureAbstract_9a3a38ee-2af0-416a-8eb0-3a2770cf0e70" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_CommitmentsAndContingenciesDisclosureAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommitmentsAndContingenciesDisclosureTextBlock_6a7501b9-4e3d-45a1-a98e-3a779eed458e" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_CommitmentsAndContingenciesDisclosureTextBlock"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_CommitmentsAndContingenciesDisclosureAbstract_9a3a38ee-2af0-416a-8eb0-3a2770cf0e70" xlink:to="loc_us-gaap_CommitmentsAndContingenciesDisclosureTextBlock_6a7501b9-4e3d-45a1-a98e-3a779eed458e" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.westpharma.com/role/SegmentInformation" xlink:type="simple" xlink:href="wst-20200331.xsd#SegmentInformation"/>
  <link:presentationLink xlink:role="http://www.westpharma.com/role/SegmentInformation" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SegmentReportingAbstract_3ee3ea47-f735-4fea-aea7-5892c3b0f646" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_SegmentReportingAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SegmentReportingDisclosureTextBlock_3a88f598-62a1-4690-b2f2-ef438fbfaf99" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_SegmentReportingDisclosureTextBlock"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SegmentReportingAbstract_3ee3ea47-f735-4fea-aea7-5892c3b0f646" xlink:to="loc_us-gaap_SegmentReportingDisclosureTextBlock_3a88f598-62a1-4690-b2f2-ef438fbfaf99" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.westpharma.com/role/SegmentInformationTables" xlink:type="simple" xlink:href="wst-20200331.xsd#SegmentInformationTables"/>
  <link:presentationLink xlink:role="http://www.westpharma.com/role/SegmentInformationTables" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SegmentReportingAbstract_bee856c6-55a9-4ad3-a7b5-36fdcd1db394" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_SegmentReportingAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ReconciliationOfOperatingProfitLossFromSegmentsToConsolidatedTextBlock_0664cff8-9ddf-458b-ad82-6cd6b1c1d3ff" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ReconciliationOfOperatingProfitLossFromSegmentsToConsolidatedTextBlock"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SegmentReportingAbstract_bee856c6-55a9-4ad3-a7b5-36fdcd1db394" xlink:to="loc_us-gaap_ReconciliationOfOperatingProfitLossFromSegmentsToConsolidatedTextBlock_0664cff8-9ddf-458b-ad82-6cd6b1c1d3ff" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
  <link:roleRef roleURI="http://www.westpharma.com/role/SegmentInformationDetails" xlink:type="simple" xlink:href="wst-20200331.xsd#SegmentInformationDetails"/>
  <link:presentationLink xlink:role="http://www.westpharma.com/role/SegmentInformationDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SegmentReportingAbstract_c36ce473-cd13-418b-a7d5-93ca9893e195" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_SegmentReportingAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NumberOfReportableSegments_96f1b6e5-1a80-4325-9dae-2687e46a42d8" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_NumberOfReportableSegments"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SegmentReportingAbstract_c36ce473-cd13-418b-a7d5-93ca9893e195" xlink:to="loc_us-gaap_NumberOfReportableSegments_96f1b6e5-1a80-4325-9dae-2687e46a42d8" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestructuringCharges_9c7a087f-38d4-4dc4-a883-a392c14a0a53" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_RestructuringCharges"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SegmentReportingAbstract_c36ce473-cd13-418b-a7d5-93ca9893e195" xlink:to="loc_us-gaap_RestructuringCharges_9c7a087f-38d4-4dc4-a883-a392c14a0a53" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ReconciliationOfOperatingProfitLossFromSegmentsToConsolidatedTable_fa7cca67-97e7-41f0-b6e4-6b2f14fbc10b" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ReconciliationOfOperatingProfitLossFromSegmentsToConsolidatedTable"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SegmentReportingAbstract_c36ce473-cd13-418b-a7d5-93ca9893e195" xlink:to="loc_us-gaap_ReconciliationOfOperatingProfitLossFromSegmentsToConsolidatedTable_fa7cca67-97e7-41f0-b6e4-6b2f14fbc10b" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeAxis_0b706fae-a5c5-48f9-aecb-1045c51a8111" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LongtermDebtTypeAxis"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ReconciliationOfOperatingProfitLossFromSegmentsToConsolidatedTable_fa7cca67-97e7-41f0-b6e4-6b2f14fbc10b" xlink:to="loc_us-gaap_LongtermDebtTypeAxis_0b706fae-a5c5-48f9-aecb-1045c51a8111" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeDomain_97ebbbd7-416b-4053-9973-78247afeb7f5" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LongtermDebtTypeDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_LongtermDebtTypeAxis_0b706fae-a5c5-48f9-aecb-1045c51a8111" xlink:to="loc_us-gaap_LongtermDebtTypeDomain_97ebbbd7-416b-4053-9973-78247afeb7f5" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementBusinessSegmentsAxis_ed002c0a-11dd-4652-b00c-9d17d2756655" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_StatementBusinessSegmentsAxis"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ReconciliationOfOperatingProfitLossFromSegmentsToConsolidatedTable_fa7cca67-97e7-41f0-b6e4-6b2f14fbc10b" xlink:to="loc_us-gaap_StatementBusinessSegmentsAxis_ed002c0a-11dd-4652-b00c-9d17d2756655" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SegmentDomain_44ad106a-1997-4a52-80f1-6dadd2e996a9" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_SegmentDomain"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_StatementBusinessSegmentsAxis_ed002c0a-11dd-4652-b00c-9d17d2756655" xlink:to="loc_us-gaap_SegmentDomain_44ad106a-1997-4a52-80f1-6dadd2e996a9" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_wst_PackagingSystemsMember_b57ad24c-d8da-4b5e-b50b-1e414801075a" xlink:href="wst-20200331.xsd#wst_PackagingSystemsMember"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SegmentDomain_44ad106a-1997-4a52-80f1-6dadd2e996a9" xlink:to="loc_wst_PackagingSystemsMember_b57ad24c-d8da-4b5e-b50b-1e414801075a" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_wst_DeliverySystemsMember_7554f435-541f-4266-aeb2-c236bdf9bd2a" xlink:href="wst-20200331.xsd#wst_DeliverySystemsMember"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SegmentDomain_44ad106a-1997-4a52-80f1-6dadd2e996a9" xlink:to="loc_wst_DeliverySystemsMember_7554f435-541f-4266-aeb2-c236bdf9bd2a" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IntersegmentEliminationMember_9ac1fbc0-88db-4fcd-a135-0452dd68c948" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_IntersegmentEliminationMember"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SegmentDomain_44ad106a-1997-4a52-80f1-6dadd2e996a9" xlink:to="loc_us-gaap_IntersegmentEliminationMember_9ac1fbc0-88db-4fcd-a135-0452dd68c948" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_wst_CorporateAndEliminationsMember_5eac6c84-27b8-4d5a-8aec-0adc3cea842a" xlink:href="wst-20200331.xsd#wst_CorporateAndEliminationsMember"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SegmentDomain_44ad106a-1997-4a52-80f1-6dadd2e996a9" xlink:to="loc_wst_CorporateAndEliminationsMember_5eac6c84-27b8-4d5a-8aec-0adc3cea842a" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_MaterialReconcilingItemsMember_c9310357-ae6b-4b96-b8b1-4700de966792" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_MaterialReconcilingItemsMember"/>
    <link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SegmentDomain_44ad106a-1997-4a52-80f1-6dadd2e996a9" xlink:to="loc_us-gaap_MaterialReconcilingItemsMember_c9310357-ae6b-4b96-b8b1-4700de966792" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SegmentReportingReconcilingItemForOperatingProfitLossFromSegmentToConsolidatedLineItems_158db81a-e106-4495-a487-38faf78265dc" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_SegmentReportingReconcilingItemForOperatingProfitLossFromSegmentToConsolidatedLineItems"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_ReconciliationOfOperatingProfitLossFromSegmentsToConsolidatedTable_fa7cca67-97e7-41f0-b6e4-6b2f14fbc10b" xlink:to="loc_us-gaap_SegmentReportingReconcilingItemForOperatingProfitLossFromSegmentToConsolidatedLineItems_158db81a-e106-4495-a487-38faf78265dc" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Revenues_a832a2d5-da04-4399-b302-0ef9f9259d78" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_Revenues"/>
    <link:presentationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SegmentReportingReconcilingItemForOperatingProfitLossFromSegmentToConsolidatedLineItems_158db81a-e106-4495-a487-38faf78265dc" xlink:to="loc_us-gaap_Revenues_a832a2d5-da04-4399-b302-0ef9f9259d78" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingIncomeLoss_e7b6b941-9abc-4a65-b99f-2cb0d120ddef" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_OperatingIncomeLoss"/>
    <link:presentationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SegmentReportingReconcilingItemForOperatingProfitLossFromSegmentToConsolidatedLineItems_158db81a-e106-4495-a487-38faf78265dc" xlink:to="loc_us-gaap_OperatingIncomeLoss_e7b6b941-9abc-4a65-b99f-2cb0d120ddef" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InterestExpense_395dbc40-6fc8-4590-8ab3-14ccf51692ce" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_InterestExpense"/>
    <link:presentationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SegmentReportingReconcilingItemForOperatingProfitLossFromSegmentToConsolidatedLineItems_158db81a-e106-4495-a487-38faf78265dc" xlink:to="loc_us-gaap_InterestExpense_395dbc40-6fc8-4590-8ab3-14ccf51692ce" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InvestmentIncomeNet_3136b971-61ac-4219-87a1-1f12c1493a40" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_InvestmentIncomeNet"/>
    <link:presentationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SegmentReportingReconcilingItemForOperatingProfitLossFromSegmentToConsolidatedLineItems_158db81a-e106-4495-a487-38faf78265dc" xlink:to="loc_us-gaap_InvestmentIncomeNet_3136b971-61ac-4219-87a1-1f12c1493a40" xlink:type="arc" preferredLabel="http://www.xbrl.org/2009/role/negatedTerseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherNonoperatingIncomeExpense_b0f6d1b7-1651-4112-9b76-1bf3240bd3d6" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_OtherNonoperatingIncomeExpense"/>
    <link:presentationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SegmentReportingReconcilingItemForOperatingProfitLossFromSegmentToConsolidatedLineItems_158db81a-e106-4495-a487-38faf78265dc" xlink:to="loc_us-gaap_OtherNonoperatingIncomeExpense_b0f6d1b7-1651-4112-9b76-1bf3240bd3d6" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/verboseLabel"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments_5ac9807e-f410-4fb8-bbf1-5f4fc18c94b4" xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments"/>
    <link:presentationArc order="6" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="loc_us-gaap_SegmentReportingReconcilingItemForOperatingProfitLossFromSegmentToConsolidatedLineItems_158db81a-e106-4495-a487-38faf78265dc" xlink:to="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments_5ac9807e-f410-4fb8-bbf1-5f4fc18c94b4" xlink:type="arc" preferredLabel="http://www.xbrl.org/2003/role/terseLabel"/>
  </link:presentationLink>
</link:linkbase>
