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

<!--XBRL Document Created with the Workiva Platform-->
<!--Copyright 2026 Workiva-->
<!--r:019d6dca-4e2e-743e-835d-4c919ce85484,g:debd893e-13f2-4137-996f-c4ba070f3374-->
<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" xmlns:xbrldt="http://xbrl.org/2005/xbrldt" xsi:schemaLocation="http://www.xbrl.org/2003/linkbase http://www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd">
  <link:arcroleRef arcroleURI="http://xbrl.org/int/dim/arcrole/all" xlink:type="simple" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#all"/>
  <link:arcroleRef arcroleURI="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:type="simple" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#hypercube-dimension"/>
  <link:arcroleRef arcroleURI="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:type="simple" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#dimension-default"/>
  <link:arcroleRef arcroleURI="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:type="simple" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#dimension-domain"/>
  <link:arcroleRef arcroleURI="http://xbrl.org/int/dim/arcrole/domain-member" xlink:type="simple" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#domain-member"/>
  <link:roleRef roleURI="http://www.crowncork.com/role/Cover" xlink:type="simple" xlink:href="cck-20260618.xsd#Cover"/>
  <link:definitionLink xlink:role="http://www.crowncork.com/role/Cover" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_dei_DocumentInformationLineItems_019d6dca-4e2f-701f-a481-85021750562c" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_DocumentInformationLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_DocumentInformationTable_019d6dca-4e2f-7db5-b9bf-18f03c5bd201" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_DocumentInformationTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_dei_DocumentInformationLineItems_019d6dca-4e2f-701f-a481-85021750562c" xlink:to="loc_dei_DocumentInformationTable_019d6dca-4e2f-7db5-b9bf-18f03c5bd201" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_LegalEntityAxis_019d6dca-4e2f-74e5-972f-d4ff97f6d5bc" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_LegalEntityAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_dei_DocumentInformationTable_019d6dca-4e2f-7db5-b9bf-18f03c5bd201" xlink:to="loc_dei_LegalEntityAxis_019d6dca-4e2f-74e5-972f-d4ff97f6d5bc" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain_019d6dca-4e2f-74e5-972f-d4ff97f6d5bc_default" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_dei_LegalEntityAxis_019d6dca-4e2f-74e5-972f-d4ff97f6d5bc" xlink:to="loc_dei_EntityDomain_019d6dca-4e2f-74e5-972f-d4ff97f6d5bc_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain_019d6dca-4e2f-707d-8027-6c34ef973759" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_dei_LegalEntityAxis_019d6dca-4e2f-74e5-972f-d4ff97f6d5bc" xlink:to="loc_dei_EntityDomain_019d6dca-4e2f-707d-8027-6c34ef973759" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_cck_EBP105Member_019d6dca-4e2f-7c47-a4f5-06ecca4fe63c" xlink:href="cck-20260618.xsd#cck_EBP105Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityDomain_019d6dca-4e2f-707d-8027-6c34ef973759" xlink:to="loc_cck_EBP105Member_019d6dca-4e2f-7c47-a4f5-06ecca4fe63c" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_DocumentType_019d6dca-4e2f-7856-b5fe-f2eef1c048e1" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_DocumentType"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_019d6dca-4e2f-701f-a481-85021750562c" xlink:to="loc_dei_DocumentType_019d6dca-4e2f-7856-b5fe-f2eef1c048e1" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityRegistrantName_019d6dca-4e2f-7a2d-adb4-c4ce95e0c698" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityRegistrantName"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_019d6dca-4e2f-701f-a481-85021750562c" xlink:to="loc_dei_EntityRegistrantName_019d6dca-4e2f-7a2d-adb4-c4ce95e0c698" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityCentralIndexKey_019d6dca-4e2f-7269-845f-9b519608d95e" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityCentralIndexKey"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_019d6dca-4e2f-701f-a481-85021750562c" xlink:to="loc_dei_EntityCentralIndexKey_019d6dca-4e2f-7269-845f-9b519608d95e" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_AmendmentFlag_019d6dca-4e2f-7fa1-a231-67392d35bd73" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_AmendmentFlag"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_019d6dca-4e2f-701f-a481-85021750562c" xlink:to="loc_dei_AmendmentFlag_019d6dca-4e2f-7fa1-a231-67392d35bd73" xlink:type="arc" order="3"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.crowncork.com/role/StatementsofNetAssetsAvailableforBenefits" xlink:type="simple" xlink:href="cck-20260618.xsd#StatementsofNetAssetsAvailableforBenefits"/>
  <link:definitionLink xlink:role="http://www.crowncork.com/role/StatementsofNetAssetsAvailableforBenefits" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap-ebp_EmployeeBenefitPlanStatementOfNetAssetAvailableForBenefitLineItems_019d6dca-4e2f-7fb9-89f6-8de80f1016c7" xlink:href="https://xbrl.fasb.org/us-gaap/2026/ebp/elts/us-gaap-ebp-2026.xsd#us-gaap-ebp_EmployeeBenefitPlanStatementOfNetAssetAvailableForBenefitLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap-ebp_EmployeeBenefitPlanStatementOfNetAssetAvailableForBenefitTable_019d6dca-4e2f-7ea6-95b9-79bb97717645" xlink:href="https://xbrl.fasb.org/us-gaap/2026/ebp/elts/us-gaap-ebp-2026.xsd#us-gaap-ebp_EmployeeBenefitPlanStatementOfNetAssetAvailableForBenefitTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanStatementOfNetAssetAvailableForBenefitLineItems_019d6dca-4e2f-7fb9-89f6-8de80f1016c7" xlink:to="loc_us-gaap-ebp_EmployeeBenefitPlanStatementOfNetAssetAvailableForBenefitTable_019d6dca-4e2f-7ea6-95b9-79bb97717645" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_LegalEntityAxis_019d6dca-4e2f-773a-b3bf-29b611903ed5" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_LegalEntityAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanStatementOfNetAssetAvailableForBenefitTable_019d6dca-4e2f-7ea6-95b9-79bb97717645" xlink:to="loc_dei_LegalEntityAxis_019d6dca-4e2f-773a-b3bf-29b611903ed5" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain_019d6dca-4e2f-773a-b3bf-29b611903ed5_default" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_dei_LegalEntityAxis_019d6dca-4e2f-773a-b3bf-29b611903ed5" xlink:to="loc_dei_EntityDomain_019d6dca-4e2f-773a-b3bf-29b611903ed5_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain_019d6dca-4e2f-7cf6-acf9-7f29fcf45166" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_dei_LegalEntityAxis_019d6dca-4e2f-773a-b3bf-29b611903ed5" xlink:to="loc_dei_EntityDomain_019d6dca-4e2f-7cf6-acf9-7f29fcf45166" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_cck_EBP105Member_019d6dca-4e2f-7ae6-8115-62b7521ef860" xlink:href="cck-20260618.xsd#cck_EBP105Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityDomain_019d6dca-4e2f-7cf6-acf9-7f29fcf45166" xlink:to="loc_cck_EBP105Member_019d6dca-4e2f-7ae6-8115-62b7521ef860" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InvestmentTypeAxis_019d6dca-4e2f-7b22-8308-f64e824271b4" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InvestmentTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanStatementOfNetAssetAvailableForBenefitTable_019d6dca-4e2f-7ea6-95b9-79bb97717645" xlink:to="loc_us-gaap_InvestmentTypeAxis_019d6dca-4e2f-7b22-8308-f64e824271b4" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InvestmentTypeCategorizationMember_019d6dca-4e2f-7b22-8308-f64e824271b4_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InvestmentTypeCategorizationMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_InvestmentTypeAxis_019d6dca-4e2f-7b22-8308-f64e824271b4" xlink:to="loc_us-gaap_InvestmentTypeCategorizationMember_019d6dca-4e2f-7b22-8308-f64e824271b4_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InvestmentTypeCategorizationMember_019d6dca-4e2f-79c1-bca4-ab362e742452" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InvestmentTypeCategorizationMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_InvestmentTypeAxis_019d6dca-4e2f-7b22-8308-f64e824271b4" xlink:to="loc_us-gaap_InvestmentTypeCategorizationMember_019d6dca-4e2f-79c1-bca4-ab362e742452" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_cck_RegisteredInvestmentCompaniesMember_019d6dca-4e2f-7856-a0b9-44f3f7a78a4b" xlink:href="cck-20260618.xsd#cck_RegisteredInvestmentCompaniesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_InvestmentTypeCategorizationMember_019d6dca-4e2f-79c1-bca4-ab362e742452" xlink:to="loc_cck_RegisteredInvestmentCompaniesMember_019d6dca-4e2f-7856-a0b9-44f3f7a78a4b" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DefinedBenefitPlanCommonCollectiveTrustMember_019d6dca-4e2f-7842-aa76-cc2cafe2d816" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DefinedBenefitPlanCommonCollectiveTrustMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_InvestmentTypeCategorizationMember_019d6dca-4e2f-79c1-bca4-ab362e742452" xlink:to="loc_us-gaap_DefinedBenefitPlanCommonCollectiveTrustMember_019d6dca-4e2f-7842-aa76-cc2cafe2d816" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap-ebp_EmployeeBenefitPlanEmployerCommonStockFundMember_019e3c48-061d-7a9c-a5b1-e2f21e463c22" xlink:href="https://xbrl.fasb.org/us-gaap/2026/ebp/elts/us-gaap-ebp-2026.xsd#us-gaap-ebp_EmployeeBenefitPlanEmployerCommonStockFundMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_InvestmentTypeCategorizationMember_019d6dca-4e2f-79c1-bca4-ab362e742452" xlink:to="loc_us-gaap-ebp_EmployeeBenefitPlanEmployerCommonStockFundMember_019e3c48-061d-7a9c-a5b1-e2f21e463c22" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap-ebp_EmployeeBenefitPlanAssetAbstract_019d6dca-4e2f-75d0-b434-26edb9674430" xlink:href="https://xbrl.fasb.org/us-gaap/2026/ebp/elts/us-gaap-ebp-2026.xsd#us-gaap-ebp_EmployeeBenefitPlanAssetAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanStatementOfNetAssetAvailableForBenefitLineItems_019d6dca-4e2f-7fb9-89f6-8de80f1016c7" xlink:to="loc_us-gaap-ebp_EmployeeBenefitPlanAssetAbstract_019d6dca-4e2f-75d0-b434-26edb9674430" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap-ebp_EmployeeBenefitPlanInvestmentExcludingPlanInterestInMasterTrustFairValue_019d6dca-4e2f-74da-a205-ccd1673f602b" xlink:href="https://xbrl.fasb.org/us-gaap/2026/ebp/elts/us-gaap-ebp-2026.xsd#us-gaap-ebp_EmployeeBenefitPlanInvestmentExcludingPlanInterestInMasterTrustFairValue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanAssetAbstract_019d6dca-4e2f-75d0-b434-26edb9674430" xlink:to="loc_us-gaap-ebp_EmployeeBenefitPlanInvestmentExcludingPlanInterestInMasterTrustFairValue_019d6dca-4e2f-74da-a205-ccd1673f602b" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap-ebp_EmployeeBenefitPlanReceivableAbstract_019d6dca-4e2f-7144-974e-f51075056bb0" xlink:href="https://xbrl.fasb.org/us-gaap/2026/ebp/elts/us-gaap-ebp-2026.xsd#us-gaap-ebp_EmployeeBenefitPlanReceivableAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanAssetAbstract_019d6dca-4e2f-75d0-b434-26edb9674430" xlink:to="loc_us-gaap-ebp_EmployeeBenefitPlanReceivableAbstract_019d6dca-4e2f-7144-974e-f51075056bb0" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap-ebp_EmployeeBenefitPlanNoteReceivableFromParticipant_019d6dca-4e2f-7963-8307-d854cc0cf226" xlink:href="https://xbrl.fasb.org/us-gaap/2026/ebp/elts/us-gaap-ebp-2026.xsd#us-gaap-ebp_EmployeeBenefitPlanNoteReceivableFromParticipant"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanReceivableAbstract_019d6dca-4e2f-7144-974e-f51075056bb0" xlink:to="loc_us-gaap-ebp_EmployeeBenefitPlanNoteReceivableFromParticipant_019d6dca-4e2f-7963-8307-d854cc0cf226" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap-ebp_EmployeeBenefitPlanEmployerContributionReceivable_019d6dca-4e2f-7a08-a5d7-64781e09dcbe" xlink:href="https://xbrl.fasb.org/us-gaap/2026/ebp/elts/us-gaap-ebp-2026.xsd#us-gaap-ebp_EmployeeBenefitPlanEmployerContributionReceivable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanReceivableAbstract_019d6dca-4e2f-7144-974e-f51075056bb0" xlink:to="loc_us-gaap-ebp_EmployeeBenefitPlanEmployerContributionReceivable_019d6dca-4e2f-7a08-a5d7-64781e09dcbe" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap-ebp_EmployeeBenefitPlanParticipantContributionReceivable_019e85c6-c8c9-723e-ac86-b44c0c374527" xlink:href="https://xbrl.fasb.org/us-gaap/2026/ebp/elts/us-gaap-ebp-2026.xsd#us-gaap-ebp_EmployeeBenefitPlanParticipantContributionReceivable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanReceivableAbstract_019d6dca-4e2f-7144-974e-f51075056bb0" xlink:to="loc_us-gaap-ebp_EmployeeBenefitPlanParticipantContributionReceivable_019e85c6-c8c9-723e-ac86-b44c0c374527" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap-ebp_EmployeeBenefitPlanReceivable_019d6dca-4e2f-7046-8f53-24ff99d05333" xlink:href="https://xbrl.fasb.org/us-gaap/2026/ebp/elts/us-gaap-ebp-2026.xsd#us-gaap-ebp_EmployeeBenefitPlanReceivable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanReceivableAbstract_019d6dca-4e2f-7144-974e-f51075056bb0" xlink:to="loc_us-gaap-ebp_EmployeeBenefitPlanReceivable_019d6dca-4e2f-7046-8f53-24ff99d05333" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap-ebp_EmployeeBenefitPlanAsset_019d6dca-4e2f-7ea7-ad96-1565d0a60f95" xlink:href="https://xbrl.fasb.org/us-gaap/2026/ebp/elts/us-gaap-ebp-2026.xsd#us-gaap-ebp_EmployeeBenefitPlanAsset"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanAssetAbstract_019d6dca-4e2f-75d0-b434-26edb9674430" xlink:to="loc_us-gaap-ebp_EmployeeBenefitPlanAsset_019d6dca-4e2f-7ea7-ad96-1565d0a60f95" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap-ebp_EmployeeBenefitPlanLiability_019d6dca-4e2f-7d0b-a93d-54a5a9330878" xlink:href="https://xbrl.fasb.org/us-gaap/2026/ebp/elts/us-gaap-ebp-2026.xsd#us-gaap-ebp_EmployeeBenefitPlanLiability"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanStatementOfNetAssetAvailableForBenefitLineItems_019d6dca-4e2f-7fb9-89f6-8de80f1016c7" xlink:to="loc_us-gaap-ebp_EmployeeBenefitPlanLiability_019d6dca-4e2f-7d0b-a93d-54a5a9330878" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap-ebp_EmployeeBenefitPlanNetAssetAvailableForBenefit_019d6dca-4e2f-75d6-87f6-d14d5a5471fa" xlink:href="https://xbrl.fasb.org/us-gaap/2026/ebp/elts/us-gaap-ebp-2026.xsd#us-gaap-ebp_EmployeeBenefitPlanNetAssetAvailableForBenefit"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanStatementOfNetAssetAvailableForBenefitLineItems_019d6dca-4e2f-7fb9-89f6-8de80f1016c7" xlink:to="loc_us-gaap-ebp_EmployeeBenefitPlanNetAssetAvailableForBenefit_019d6dca-4e2f-75d6-87f6-d14d5a5471fa" xlink:type="arc" order="2"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.crowncork.com/role/StatementsofChangesinNetAssetsAvailableforBenefits" xlink:type="simple" xlink:href="cck-20260618.xsd#StatementsofChangesinNetAssetsAvailableforBenefits"/>
  <link:definitionLink xlink:role="http://www.crowncork.com/role/StatementsofChangesinNetAssetsAvailableforBenefits" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap-ebp_EmployeeBenefitPlanStatementOfChangeInNetAssetAvailableForBenefitLineItems_019d6dca-4e2f-7366-a5d9-41e09ba03903" xlink:href="https://xbrl.fasb.org/us-gaap/2026/ebp/elts/us-gaap-ebp-2026.xsd#us-gaap-ebp_EmployeeBenefitPlanStatementOfChangeInNetAssetAvailableForBenefitLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap-ebp_EmployeeBenefitPlanStatementOfChangeInNetAssetAvailableForBenefitTable_019d6dca-4e2f-7026-95d6-1b0dc755a406" xlink:href="https://xbrl.fasb.org/us-gaap/2026/ebp/elts/us-gaap-ebp-2026.xsd#us-gaap-ebp_EmployeeBenefitPlanStatementOfChangeInNetAssetAvailableForBenefitTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanStatementOfChangeInNetAssetAvailableForBenefitLineItems_019d6dca-4e2f-7366-a5d9-41e09ba03903" xlink:to="loc_us-gaap-ebp_EmployeeBenefitPlanStatementOfChangeInNetAssetAvailableForBenefitTable_019d6dca-4e2f-7026-95d6-1b0dc755a406" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_LegalEntityAxis_019d6dca-4e2f-7789-b689-92a2f2d89dbd" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_LegalEntityAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanStatementOfChangeInNetAssetAvailableForBenefitTable_019d6dca-4e2f-7026-95d6-1b0dc755a406" xlink:to="loc_dei_LegalEntityAxis_019d6dca-4e2f-7789-b689-92a2f2d89dbd" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain_019d6dca-4e2f-7789-b689-92a2f2d89dbd_default" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_dei_LegalEntityAxis_019d6dca-4e2f-7789-b689-92a2f2d89dbd" xlink:to="loc_dei_EntityDomain_019d6dca-4e2f-7789-b689-92a2f2d89dbd_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain_019d6dca-4e2f-7d38-9c2f-83f6f9ae815a" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_dei_LegalEntityAxis_019d6dca-4e2f-7789-b689-92a2f2d89dbd" xlink:to="loc_dei_EntityDomain_019d6dca-4e2f-7d38-9c2f-83f6f9ae815a" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_cck_EBP105Member_019d6dca-4e2f-766c-bda3-42e537b029a5" xlink:href="cck-20260618.xsd#cck_EBP105Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityDomain_019d6dca-4e2f-7d38-9c2f-83f6f9ae815a" xlink:to="loc_cck_EBP105Member_019d6dca-4e2f-766c-bda3-42e537b029a5" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap-ebp_EmployeeBenefitPlanChangeInNetAssetAvailableForBenefitIncreaseAbstract_019d6dca-4e2f-74ed-87e2-9805c265e1c0" xlink:href="https://xbrl.fasb.org/us-gaap/2026/ebp/elts/us-gaap-ebp-2026.xsd#us-gaap-ebp_EmployeeBenefitPlanChangeInNetAssetAvailableForBenefitIncreaseAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanStatementOfChangeInNetAssetAvailableForBenefitLineItems_019d6dca-4e2f-7366-a5d9-41e09ba03903" xlink:to="loc_us-gaap-ebp_EmployeeBenefitPlanChangeInNetAssetAvailableForBenefitIncreaseAbstract_019d6dca-4e2f-74ed-87e2-9805c265e1c0" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap-ebp_EmployeeBenefitPlanChangeInNetAssetAvailableForBenefitIncreaseDecreaseForIncomeLossOnInvestmentAbstract_019d6dca-4e2f-747c-9b64-0d9b0d68adf4" xlink:href="https://xbrl.fasb.org/us-gaap/2026/ebp/elts/us-gaap-ebp-2026.xsd#us-gaap-ebp_EmployeeBenefitPlanChangeInNetAssetAvailableForBenefitIncreaseDecreaseForIncomeLossOnInvestmentAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanChangeInNetAssetAvailableForBenefitIncreaseAbstract_019d6dca-4e2f-74ed-87e2-9805c265e1c0" xlink:to="loc_us-gaap-ebp_EmployeeBenefitPlanChangeInNetAssetAvailableForBenefitIncreaseDecreaseForIncomeLossOnInvestmentAbstract_019d6dca-4e2f-747c-9b64-0d9b0d68adf4" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap-ebp_EmployeeBenefitPlanChangeInNetAssetAvailableForBenefitIncreaseForInterestAndDividendIncomeOnInvestment_019d6dca-4e2f-7910-bf38-8973343f58c4" xlink:href="https://xbrl.fasb.org/us-gaap/2026/ebp/elts/us-gaap-ebp-2026.xsd#us-gaap-ebp_EmployeeBenefitPlanChangeInNetAssetAvailableForBenefitIncreaseForInterestAndDividendIncomeOnInvestment"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanChangeInNetAssetAvailableForBenefitIncreaseDecreaseForIncomeLossOnInvestmentAbstract_019d6dca-4e2f-747c-9b64-0d9b0d68adf4" xlink:to="loc_us-gaap-ebp_EmployeeBenefitPlanChangeInNetAssetAvailableForBenefitIncreaseForInterestAndDividendIncomeOnInvestment_019d6dca-4e2f-7910-bf38-8973343f58c4" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap-ebp_EmployeeBenefitPlanChangeInNetAssetAvailableForBenefitIncreaseDecreaseForGainLossOnInvestment_019d6dca-4e2f-7221-b825-af143f85f3c1" xlink:href="https://xbrl.fasb.org/us-gaap/2026/ebp/elts/us-gaap-ebp-2026.xsd#us-gaap-ebp_EmployeeBenefitPlanChangeInNetAssetAvailableForBenefitIncreaseDecreaseForGainLossOnInvestment"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanChangeInNetAssetAvailableForBenefitIncreaseDecreaseForIncomeLossOnInvestmentAbstract_019d6dca-4e2f-747c-9b64-0d9b0d68adf4" xlink:to="loc_us-gaap-ebp_EmployeeBenefitPlanChangeInNetAssetAvailableForBenefitIncreaseDecreaseForGainLossOnInvestment_019d6dca-4e2f-7221-b825-af143f85f3c1" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap-ebp_EmployeeBenefitPlanChangeInNetAssetAvailableForBenefitIncreaseDecreaseForIncomeLossOnInvestment_019d6dca-4e2f-7b82-a32d-4ba0ec3baa13" xlink:href="https://xbrl.fasb.org/us-gaap/2026/ebp/elts/us-gaap-ebp-2026.xsd#us-gaap-ebp_EmployeeBenefitPlanChangeInNetAssetAvailableForBenefitIncreaseDecreaseForIncomeLossOnInvestment"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanChangeInNetAssetAvailableForBenefitIncreaseDecreaseForIncomeLossOnInvestmentAbstract_019d6dca-4e2f-747c-9b64-0d9b0d68adf4" xlink:to="loc_us-gaap-ebp_EmployeeBenefitPlanChangeInNetAssetAvailableForBenefitIncreaseDecreaseForIncomeLossOnInvestment_019d6dca-4e2f-7b82-a32d-4ba0ec3baa13" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap-ebp_EmployeeBenefitPlanChangeInNetAssetAvailableForBenefitIncreaseForInterestIncomeOnNoteReceivableFromParticipant_019d6dca-4e2f-7daa-a49e-49fb69806b7f" xlink:href="https://xbrl.fasb.org/us-gaap/2026/ebp/elts/us-gaap-ebp-2026.xsd#us-gaap-ebp_EmployeeBenefitPlanChangeInNetAssetAvailableForBenefitIncreaseForInterestIncomeOnNoteReceivableFromParticipant"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanChangeInNetAssetAvailableForBenefitIncreaseAbstract_019d6dca-4e2f-74ed-87e2-9805c265e1c0" xlink:to="loc_us-gaap-ebp_EmployeeBenefitPlanChangeInNetAssetAvailableForBenefitIncreaseForInterestIncomeOnNoteReceivableFromParticipant_019d6dca-4e2f-7daa-a49e-49fb69806b7f" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap-ebp_EmployeeBenefitPlanChangeInNetAssetAvailableForBenefitIncreaseForContributionAbstract_019d6dca-4e2f-71da-af9d-00df345f70a0" xlink:href="https://xbrl.fasb.org/us-gaap/2026/ebp/elts/us-gaap-ebp-2026.xsd#us-gaap-ebp_EmployeeBenefitPlanChangeInNetAssetAvailableForBenefitIncreaseForContributionAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanChangeInNetAssetAvailableForBenefitIncreaseAbstract_019d6dca-4e2f-74ed-87e2-9805c265e1c0" xlink:to="loc_us-gaap-ebp_EmployeeBenefitPlanChangeInNetAssetAvailableForBenefitIncreaseForContributionAbstract_019d6dca-4e2f-71da-af9d-00df345f70a0" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap-ebp_EmployeeBenefitPlanChangeInNetAssetAvailableForBenefitIncreaseForEmployerContributionCash_019d6dca-4e2f-7347-be39-a33418e2df1b" xlink:href="https://xbrl.fasb.org/us-gaap/2026/ebp/elts/us-gaap-ebp-2026.xsd#us-gaap-ebp_EmployeeBenefitPlanChangeInNetAssetAvailableForBenefitIncreaseForEmployerContributionCash"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanChangeInNetAssetAvailableForBenefitIncreaseForContributionAbstract_019d6dca-4e2f-71da-af9d-00df345f70a0" xlink:to="loc_us-gaap-ebp_EmployeeBenefitPlanChangeInNetAssetAvailableForBenefitIncreaseForEmployerContributionCash_019d6dca-4e2f-7347-be39-a33418e2df1b" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap-ebp_EmployeeBenefitPlanChangeInNetAssetAvailableForBenefitIncreaseForParticipantContribution_019d6dca-4e2f-73eb-a310-f6ec18661b15" xlink:href="https://xbrl.fasb.org/us-gaap/2026/ebp/elts/us-gaap-ebp-2026.xsd#us-gaap-ebp_EmployeeBenefitPlanChangeInNetAssetAvailableForBenefitIncreaseForParticipantContribution"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanChangeInNetAssetAvailableForBenefitIncreaseForContributionAbstract_019d6dca-4e2f-71da-af9d-00df345f70a0" xlink:to="loc_us-gaap-ebp_EmployeeBenefitPlanChangeInNetAssetAvailableForBenefitIncreaseForParticipantContribution_019d6dca-4e2f-73eb-a310-f6ec18661b15" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap-ebp_EmployeeBenefitPlanChangeInNetAssetAvailableForBenefitIncreaseForContribution_019d6dca-4e2f-79aa-b286-acff4e0fdb65" xlink:href="https://xbrl.fasb.org/us-gaap/2026/ebp/elts/us-gaap-ebp-2026.xsd#us-gaap-ebp_EmployeeBenefitPlanChangeInNetAssetAvailableForBenefitIncreaseForContribution"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanChangeInNetAssetAvailableForBenefitIncreaseForContributionAbstract_019d6dca-4e2f-71da-af9d-00df345f70a0" xlink:to="loc_us-gaap-ebp_EmployeeBenefitPlanChangeInNetAssetAvailableForBenefitIncreaseForContribution_019d6dca-4e2f-79aa-b286-acff4e0fdb65" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_cck_EBPChangeInNetAssetAvailableForBenefitIncreaseFromOtherAdditions_019d6dca-4e2f-7ebe-9c1a-79e3a29959c2" xlink:href="cck-20260618.xsd#cck_EBPChangeInNetAssetAvailableForBenefitIncreaseFromOtherAdditions"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanChangeInNetAssetAvailableForBenefitIncreaseAbstract_019d6dca-4e2f-74ed-87e2-9805c265e1c0" xlink:to="loc_cck_EBPChangeInNetAssetAvailableForBenefitIncreaseFromOtherAdditions_019d6dca-4e2f-7ebe-9c1a-79e3a29959c2" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap-ebp_EmployeeBenefitPlanChangeInNetAssetAvailableForBenefitIncrease_019d6dca-4e2f-7ba7-b4d8-39482f021e50" xlink:href="https://xbrl.fasb.org/us-gaap/2026/ebp/elts/us-gaap-ebp-2026.xsd#us-gaap-ebp_EmployeeBenefitPlanChangeInNetAssetAvailableForBenefitIncrease"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanChangeInNetAssetAvailableForBenefitIncreaseAbstract_019d6dca-4e2f-74ed-87e2-9805c265e1c0" xlink:to="loc_us-gaap-ebp_EmployeeBenefitPlanChangeInNetAssetAvailableForBenefitIncrease_019d6dca-4e2f-7ba7-b4d8-39482f021e50" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap-ebp_EmployeeBenefitPlanChangeInNetAssetAvailableForBenefitDecreaseAbstract_019d6dca-4e2f-7609-8b15-cdfc72ac8e3a" xlink:href="https://xbrl.fasb.org/us-gaap/2026/ebp/elts/us-gaap-ebp-2026.xsd#us-gaap-ebp_EmployeeBenefitPlanChangeInNetAssetAvailableForBenefitDecreaseAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanStatementOfChangeInNetAssetAvailableForBenefitLineItems_019d6dca-4e2f-7366-a5d9-41e09ba03903" xlink:to="loc_us-gaap-ebp_EmployeeBenefitPlanChangeInNetAssetAvailableForBenefitDecreaseAbstract_019d6dca-4e2f-7609-8b15-cdfc72ac8e3a" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap-ebp_EmployeeBenefitPlanChangeInNetAssetAvailableForBenefitDecreaseForPaymentToParticipant_019d6dca-4e2f-7b6e-9cfa-ac4cea0e90a5" xlink:href="https://xbrl.fasb.org/us-gaap/2026/ebp/elts/us-gaap-ebp-2026.xsd#us-gaap-ebp_EmployeeBenefitPlanChangeInNetAssetAvailableForBenefitDecreaseForPaymentToParticipant"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanChangeInNetAssetAvailableForBenefitDecreaseAbstract_019d6dca-4e2f-7609-8b15-cdfc72ac8e3a" xlink:to="loc_us-gaap-ebp_EmployeeBenefitPlanChangeInNetAssetAvailableForBenefitDecreaseForPaymentToParticipant_019d6dca-4e2f-7b6e-9cfa-ac4cea0e90a5" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap-ebp_EmployeeBenefitPlanChangeInNetAssetAvailableForBenefitDecrease_019d6dca-4e2f-7433-8bb6-66f0dc51d183" xlink:href="https://xbrl.fasb.org/us-gaap/2026/ebp/elts/us-gaap-ebp-2026.xsd#us-gaap-ebp_EmployeeBenefitPlanChangeInNetAssetAvailableForBenefitDecrease"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanChangeInNetAssetAvailableForBenefitDecreaseAbstract_019d6dca-4e2f-7609-8b15-cdfc72ac8e3a" xlink:to="loc_us-gaap-ebp_EmployeeBenefitPlanChangeInNetAssetAvailableForBenefitDecrease_019d6dca-4e2f-7433-8bb6-66f0dc51d183" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap-ebp_EmployeeBenefitPlanChangeInNetAssetAvailableForBenefitDecreaseForAdministrativeExpense_019d6dca-4e2f-7392-99f3-ab6edafbf8e3" xlink:href="https://xbrl.fasb.org/us-gaap/2026/ebp/elts/us-gaap-ebp-2026.xsd#us-gaap-ebp_EmployeeBenefitPlanChangeInNetAssetAvailableForBenefitDecreaseForAdministrativeExpense"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanChangeInNetAssetAvailableForBenefitDecreaseAbstract_019d6dca-4e2f-7609-8b15-cdfc72ac8e3a" xlink:to="loc_us-gaap-ebp_EmployeeBenefitPlanChangeInNetAssetAvailableForBenefitDecreaseForAdministrativeExpense_019d6dca-4e2f-7392-99f3-ab6edafbf8e3" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_cck_EBPChangeInNetAssetAvailableForBenefitDecreaseFromOtherDeductions_019d6dca-4e2f-7ae6-8b21-a9b715cdebb6" xlink:href="cck-20260618.xsd#cck_EBPChangeInNetAssetAvailableForBenefitDecreaseFromOtherDeductions"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanChangeInNetAssetAvailableForBenefitDecreaseAbstract_019d6dca-4e2f-7609-8b15-cdfc72ac8e3a" xlink:to="loc_cck_EBPChangeInNetAssetAvailableForBenefitDecreaseFromOtherDeductions_019d6dca-4e2f-7ae6-8b21-a9b715cdebb6" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap-ebp_EmployeeBenefitPlanChangeInNetAssetAvailableForBenefitIncreaseDecrease_019d6dca-4e2f-7cd0-8a27-494d02c54ed1" xlink:href="https://xbrl.fasb.org/us-gaap/2026/ebp/elts/us-gaap-ebp-2026.xsd#us-gaap-ebp_EmployeeBenefitPlanChangeInNetAssetAvailableForBenefitIncreaseDecrease"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanStatementOfChangeInNetAssetAvailableForBenefitLineItems_019d6dca-4e2f-7366-a5d9-41e09ba03903" xlink:to="loc_us-gaap-ebp_EmployeeBenefitPlanChangeInNetAssetAvailableForBenefitIncreaseDecrease_019d6dca-4e2f-7cd0-8a27-494d02c54ed1" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_cck_EBPChangeInNetAssetAvailableForBenefitTransferFromPlan_019d6dca-4e2f-71dc-9ed7-4b1498eb6ac4" xlink:href="cck-20260618.xsd#cck_EBPChangeInNetAssetAvailableForBenefitTransferFromPlan"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanStatementOfChangeInNetAssetAvailableForBenefitLineItems_019d6dca-4e2f-7366-a5d9-41e09ba03903" xlink:to="loc_cck_EBPChangeInNetAssetAvailableForBenefitTransferFromPlan_019d6dca-4e2f-71dc-9ed7-4b1498eb6ac4" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_cck_EBPChangeInNetAssetAvailableForBenefitTransferToPlan_019d6dca-4e2f-7c2b-b2c2-4317f05a5047" xlink:href="cck-20260618.xsd#cck_EBPChangeInNetAssetAvailableForBenefitTransferToPlan"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanStatementOfChangeInNetAssetAvailableForBenefitLineItems_019d6dca-4e2f-7366-a5d9-41e09ba03903" xlink:to="loc_cck_EBPChangeInNetAssetAvailableForBenefitTransferToPlan_019d6dca-4e2f-7c2b-b2c2-4317f05a5047" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap-ebp_EmployeeBenefitPlanNetAssetAvailableForBenefitAbstract_019d6dca-4e2f-7194-a0eb-52ca0664abd8" xlink:href="https://xbrl.fasb.org/us-gaap/2026/ebp/elts/us-gaap-ebp-2026.xsd#us-gaap-ebp_EmployeeBenefitPlanNetAssetAvailableForBenefitAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanStatementOfChangeInNetAssetAvailableForBenefitLineItems_019d6dca-4e2f-7366-a5d9-41e09ba03903" xlink:to="loc_us-gaap-ebp_EmployeeBenefitPlanNetAssetAvailableForBenefitAbstract_019d6dca-4e2f-7194-a0eb-52ca0664abd8" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap-ebp_EmployeeBenefitPlanNetAssetAvailableForBenefit_019d6dca-4e2f-7339-bb7f-ca08d6875318" xlink:href="https://xbrl.fasb.org/us-gaap/2026/ebp/elts/us-gaap-ebp-2026.xsd#us-gaap-ebp_EmployeeBenefitPlanNetAssetAvailableForBenefit"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanNetAssetAvailableForBenefitAbstract_019d6dca-4e2f-7194-a0eb-52ca0664abd8" xlink:to="loc_us-gaap-ebp_EmployeeBenefitPlanNetAssetAvailableForBenefit_019d6dca-4e2f-7339-bb7f-ca08d6875318" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap-ebp_EmployeeBenefitPlanNetAssetAvailableForBenefit_019d6dca-4e2f-7101-b670-c6697b0737e4" xlink:href="https://xbrl.fasb.org/us-gaap/2026/ebp/elts/us-gaap-ebp-2026.xsd#us-gaap-ebp_EmployeeBenefitPlanNetAssetAvailableForBenefit"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.crowncork.com/role/DESCRIPTIONOFPLAN" xlink:type="simple" xlink:href="cck-20260618.xsd#DESCRIPTIONOFPLAN"/>
  <link:definitionLink xlink:role="http://www.crowncork.com/role/DESCRIPTIONOFPLAN" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap-ebp_EmployeeBenefitPlanDescriptionOfPlanLineItems_019d6dca-4e2f-70a8-a5e1-1521b7d62cb4" xlink:href="https://xbrl.fasb.org/us-gaap/2026/ebp/elts/us-gaap-ebp-2026.xsd#us-gaap-ebp_EmployeeBenefitPlanDescriptionOfPlanLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap-ebp_EmployeeBenefitPlanDescriptionOfPlanTable_019d6dca-4e2f-7fdd-a20c-f2a36141a582" xlink:href="https://xbrl.fasb.org/us-gaap/2026/ebp/elts/us-gaap-ebp-2026.xsd#us-gaap-ebp_EmployeeBenefitPlanDescriptionOfPlanTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanDescriptionOfPlanLineItems_019d6dca-4e2f-70a8-a5e1-1521b7d62cb4" xlink:to="loc_us-gaap-ebp_EmployeeBenefitPlanDescriptionOfPlanTable_019d6dca-4e2f-7fdd-a20c-f2a36141a582" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_LegalEntityAxis_019d6dca-4e2f-7e35-a87c-86cc6c6146c1" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_LegalEntityAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanDescriptionOfPlanTable_019d6dca-4e2f-7fdd-a20c-f2a36141a582" xlink:to="loc_dei_LegalEntityAxis_019d6dca-4e2f-7e35-a87c-86cc6c6146c1" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain_019d6dca-4e2f-7e35-a87c-86cc6c6146c1_default" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_dei_LegalEntityAxis_019d6dca-4e2f-7e35-a87c-86cc6c6146c1" xlink:to="loc_dei_EntityDomain_019d6dca-4e2f-7e35-a87c-86cc6c6146c1_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain_019d6dca-4e2f-7757-873f-5cea23013e56" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_dei_LegalEntityAxis_019d6dca-4e2f-7e35-a87c-86cc6c6146c1" xlink:to="loc_dei_EntityDomain_019d6dca-4e2f-7757-873f-5cea23013e56" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_cck_EBP105Member_019d6dca-4e2f-74a8-aece-bc2a0824e03b" xlink:href="cck-20260618.xsd#cck_EBP105Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityDomain_019d6dca-4e2f-7757-873f-5cea23013e56" xlink:to="loc_cck_EBP105Member_019d6dca-4e2f-74a8-aece-bc2a0824e03b" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap-ebp_EmployeeBenefitPlanDescriptionOfPlanTextBlock_019d6dca-4e2f-745c-841a-5746cb35522c" xlink:href="https://xbrl.fasb.org/us-gaap/2026/ebp/elts/us-gaap-ebp-2026.xsd#us-gaap-ebp_EmployeeBenefitPlanDescriptionOfPlanTextBlock"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanDescriptionOfPlanLineItems_019d6dca-4e2f-70a8-a5e1-1521b7d62cb4" xlink:to="loc_us-gaap-ebp_EmployeeBenefitPlanDescriptionOfPlanTextBlock_019d6dca-4e2f-745c-841a-5746cb35522c" xlink:type="arc" order="0"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.crowncork.com/role/SUMMARYOFSIGNIFICANTACCOUNTINGPOLICIES" xlink:type="simple" xlink:href="cck-20260618.xsd#SUMMARYOFSIGNIFICANTACCOUNTINGPOLICIES"/>
  <link:definitionLink xlink:role="http://www.crowncork.com/role/SUMMARYOFSIGNIFICANTACCOUNTINGPOLICIES" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap-ebp_EmployeeBenefitPlanAccountingPolicyLineItems_019d6dca-4e2f-7487-b2f2-5093a70c19df" xlink:href="https://xbrl.fasb.org/us-gaap/2026/ebp/elts/us-gaap-ebp-2026.xsd#us-gaap-ebp_EmployeeBenefitPlanAccountingPolicyLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap-ebp_EmployeeBenefitPlanAccountingPolicyTable_019d6dca-4e2f-7005-af9e-6d13c7d4f40d" xlink:href="https://xbrl.fasb.org/us-gaap/2026/ebp/elts/us-gaap-ebp-2026.xsd#us-gaap-ebp_EmployeeBenefitPlanAccountingPolicyTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanAccountingPolicyLineItems_019d6dca-4e2f-7487-b2f2-5093a70c19df" xlink:to="loc_us-gaap-ebp_EmployeeBenefitPlanAccountingPolicyTable_019d6dca-4e2f-7005-af9e-6d13c7d4f40d" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_LegalEntityAxis_019d6dca-4e2f-7ab2-a3e1-75e2059f5496" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_LegalEntityAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanAccountingPolicyTable_019d6dca-4e2f-7005-af9e-6d13c7d4f40d" xlink:to="loc_dei_LegalEntityAxis_019d6dca-4e2f-7ab2-a3e1-75e2059f5496" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain_019d6dca-4e2f-7ab2-a3e1-75e2059f5496_default" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_dei_LegalEntityAxis_019d6dca-4e2f-7ab2-a3e1-75e2059f5496" xlink:to="loc_dei_EntityDomain_019d6dca-4e2f-7ab2-a3e1-75e2059f5496_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain_019d6dca-4e2f-7093-83b4-81c2e139735c" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_dei_LegalEntityAxis_019d6dca-4e2f-7ab2-a3e1-75e2059f5496" xlink:to="loc_dei_EntityDomain_019d6dca-4e2f-7093-83b4-81c2e139735c" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_cck_EBP105Member_019d6dca-4e2f-73e6-aae2-ae0941c5744b" xlink:href="cck-20260618.xsd#cck_EBP105Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityDomain_019d6dca-4e2f-7093-83b4-81c2e139735c" xlink:to="loc_cck_EBP105Member_019d6dca-4e2f-73e6-aae2-ae0941c5744b" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap-ebp_EmployeeBenefitPlanSummaryOfAccountingPolicyTextBlock_019d6dca-4e2f-7297-b85c-058ea9c65d32" xlink:href="https://xbrl.fasb.org/us-gaap/2026/ebp/elts/us-gaap-ebp-2026.xsd#us-gaap-ebp_EmployeeBenefitPlanSummaryOfAccountingPolicyTextBlock"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanAccountingPolicyLineItems_019d6dca-4e2f-7487-b2f2-5093a70c19df" xlink:to="loc_us-gaap-ebp_EmployeeBenefitPlanSummaryOfAccountingPolicyTextBlock_019d6dca-4e2f-7297-b85c-058ea9c65d32" xlink:type="arc" order="0"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.crowncork.com/role/FAIRVALUEMEASUREMENTS" xlink:type="simple" xlink:href="cck-20260618.xsd#FAIRVALUEMEASUREMENTS"/>
  <link:definitionLink xlink:role="http://www.crowncork.com/role/FAIRVALUEMEASUREMENTS" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap-ebp_EmployeeBenefitPlanInvestmentFairValueAndNavLineItems_019d6dca-4e2f-7153-bd7c-76ea067214b7" xlink:href="https://xbrl.fasb.org/us-gaap/2026/ebp/elts/us-gaap-ebp-2026.xsd#us-gaap-ebp_EmployeeBenefitPlanInvestmentFairValueAndNavLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap-ebp_EmployeeBenefitPlanInvestmentFairValueAndNavTable_019d6dca-4e2f-720b-8c78-15fbe63bdd7d" xlink:href="https://xbrl.fasb.org/us-gaap/2026/ebp/elts/us-gaap-ebp-2026.xsd#us-gaap-ebp_EmployeeBenefitPlanInvestmentFairValueAndNavTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanInvestmentFairValueAndNavLineItems_019d6dca-4e2f-7153-bd7c-76ea067214b7" xlink:to="loc_us-gaap-ebp_EmployeeBenefitPlanInvestmentFairValueAndNavTable_019d6dca-4e2f-720b-8c78-15fbe63bdd7d" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_LegalEntityAxis_019d6dca-4e2f-740d-bf80-ca1ad10f0075" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_LegalEntityAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanInvestmentFairValueAndNavTable_019d6dca-4e2f-720b-8c78-15fbe63bdd7d" xlink:to="loc_dei_LegalEntityAxis_019d6dca-4e2f-740d-bf80-ca1ad10f0075" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain_019d6dca-4e2f-740d-bf80-ca1ad10f0075_default" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_dei_LegalEntityAxis_019d6dca-4e2f-740d-bf80-ca1ad10f0075" xlink:to="loc_dei_EntityDomain_019d6dca-4e2f-740d-bf80-ca1ad10f0075_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain_019d6dca-4e2f-798f-adc2-d725b5eac517" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_dei_LegalEntityAxis_019d6dca-4e2f-740d-bf80-ca1ad10f0075" xlink:to="loc_dei_EntityDomain_019d6dca-4e2f-798f-adc2-d725b5eac517" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_cck_EBP105Member_019d6dca-4e2f-79a9-8754-d25125edd14d" xlink:href="cck-20260618.xsd#cck_EBP105Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityDomain_019d6dca-4e2f-798f-adc2-d725b5eac517" xlink:to="loc_cck_EBP105Member_019d6dca-4e2f-79a9-8754-d25125edd14d" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap-ebp_EmployeeBenefitPlanInvestmentFairValueAndNavTextBlock_019d6dca-4e2f-7dd2-8684-c8fce9edcedd" xlink:href="https://xbrl.fasb.org/us-gaap/2026/ebp/elts/us-gaap-ebp-2026.xsd#us-gaap-ebp_EmployeeBenefitPlanInvestmentFairValueAndNavTextBlock"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanInvestmentFairValueAndNavLineItems_019d6dca-4e2f-7153-bd7c-76ea067214b7" xlink:to="loc_us-gaap-ebp_EmployeeBenefitPlanInvestmentFairValueAndNavTextBlock_019d6dca-4e2f-7dd2-8684-c8fce9edcedd" xlink:type="arc" order="0"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.crowncork.com/role/RELATEDPARTYTRANSACTIONS" xlink:type="simple" xlink:href="cck-20260618.xsd#RELATEDPARTYTRANSACTIONS"/>
  <link:definitionLink xlink:role="http://www.crowncork.com/role/RELATEDPARTYTRANSACTIONS" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap-ebp_EmployeeBenefitPlanRelatedPartyAndPartyInInterestTransactionsLineItems_019d6dca-4e2f-76ee-b5ba-7571e3723c41" xlink:href="https://xbrl.fasb.org/us-gaap/2026/ebp/elts/us-gaap-ebp-2026.xsd#us-gaap-ebp_EmployeeBenefitPlanRelatedPartyAndPartyInInterestTransactionsLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap-ebp_EmployeeBenefitPlanRelatedPartyAndPartyInInterestTransactionsTable_019d6dca-4e2f-7e60-a464-7213bc3d442d" xlink:href="https://xbrl.fasb.org/us-gaap/2026/ebp/elts/us-gaap-ebp-2026.xsd#us-gaap-ebp_EmployeeBenefitPlanRelatedPartyAndPartyInInterestTransactionsTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanRelatedPartyAndPartyInInterestTransactionsLineItems_019d6dca-4e2f-76ee-b5ba-7571e3723c41" xlink:to="loc_us-gaap-ebp_EmployeeBenefitPlanRelatedPartyAndPartyInInterestTransactionsTable_019d6dca-4e2f-7e60-a464-7213bc3d442d" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_LegalEntityAxis_019d6dca-4e2f-7368-abfc-7a0ad34bca65" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_LegalEntityAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanRelatedPartyAndPartyInInterestTransactionsTable_019d6dca-4e2f-7e60-a464-7213bc3d442d" xlink:to="loc_dei_LegalEntityAxis_019d6dca-4e2f-7368-abfc-7a0ad34bca65" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain_019d6dca-4e2f-7368-abfc-7a0ad34bca65_default" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_dei_LegalEntityAxis_019d6dca-4e2f-7368-abfc-7a0ad34bca65" xlink:to="loc_dei_EntityDomain_019d6dca-4e2f-7368-abfc-7a0ad34bca65_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain_019d6dca-4e2f-7a56-9e3f-0fd59e7136c4" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_dei_LegalEntityAxis_019d6dca-4e2f-7368-abfc-7a0ad34bca65" xlink:to="loc_dei_EntityDomain_019d6dca-4e2f-7a56-9e3f-0fd59e7136c4" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_cck_EBP105Member_019d6dca-4e2f-7dbf-af5f-f1368f8729a9" xlink:href="cck-20260618.xsd#cck_EBP105Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityDomain_019d6dca-4e2f-7a56-9e3f-0fd59e7136c4" xlink:to="loc_cck_EBP105Member_019d6dca-4e2f-7dbf-af5f-f1368f8729a9" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap-ebp_EmployeeBenefitPlanRelatedPartyAndPartyInInterestTransactionsTextBlock_019d6dca-4e2f-74aa-b9bf-89f0f51868d0" xlink:href="https://xbrl.fasb.org/us-gaap/2026/ebp/elts/us-gaap-ebp-2026.xsd#us-gaap-ebp_EmployeeBenefitPlanRelatedPartyAndPartyInInterestTransactionsTextBlock"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanRelatedPartyAndPartyInInterestTransactionsLineItems_019d6dca-4e2f-76ee-b5ba-7571e3723c41" xlink:to="loc_us-gaap-ebp_EmployeeBenefitPlanRelatedPartyAndPartyInInterestTransactionsTextBlock_019d6dca-4e2f-74aa-b9bf-89f0f51868d0" xlink:type="arc" order="0"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.crowncork.com/role/TAXSTATUS" xlink:type="simple" xlink:href="cck-20260618.xsd#TAXSTATUS"/>
  <link:definitionLink xlink:role="http://www.crowncork.com/role/TAXSTATUS" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap-ebp_EmployeeBenefitPlanTaxStatusLineItems_019d6dca-4e2f-7472-8931-ec78ab2d58bc" xlink:href="https://xbrl.fasb.org/us-gaap/2026/ebp/elts/us-gaap-ebp-2026.xsd#us-gaap-ebp_EmployeeBenefitPlanTaxStatusLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap-ebp_EmployeeBenefitPlanTaxStatusTable_019d6dca-4e2f-757e-8ada-1be0680e06c4" xlink:href="https://xbrl.fasb.org/us-gaap/2026/ebp/elts/us-gaap-ebp-2026.xsd#us-gaap-ebp_EmployeeBenefitPlanTaxStatusTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanTaxStatusLineItems_019d6dca-4e2f-7472-8931-ec78ab2d58bc" xlink:to="loc_us-gaap-ebp_EmployeeBenefitPlanTaxStatusTable_019d6dca-4e2f-757e-8ada-1be0680e06c4" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_LegalEntityAxis_019d6dca-4e2f-70da-ac3b-a68327a62d4a" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_LegalEntityAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanTaxStatusTable_019d6dca-4e2f-757e-8ada-1be0680e06c4" xlink:to="loc_dei_LegalEntityAxis_019d6dca-4e2f-70da-ac3b-a68327a62d4a" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain_019d6dca-4e2f-70da-ac3b-a68327a62d4a_default" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_dei_LegalEntityAxis_019d6dca-4e2f-70da-ac3b-a68327a62d4a" xlink:to="loc_dei_EntityDomain_019d6dca-4e2f-70da-ac3b-a68327a62d4a_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain_019d6dca-4e2f-7981-aac5-3901cd9aebf0" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_dei_LegalEntityAxis_019d6dca-4e2f-70da-ac3b-a68327a62d4a" xlink:to="loc_dei_EntityDomain_019d6dca-4e2f-7981-aac5-3901cd9aebf0" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_cck_EBP105Member_019d6dca-4e2f-7e22-b688-d39f107dcc52" xlink:href="cck-20260618.xsd#cck_EBP105Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityDomain_019d6dca-4e2f-7981-aac5-3901cd9aebf0" xlink:to="loc_cck_EBP105Member_019d6dca-4e2f-7e22-b688-d39f107dcc52" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap-ebp_EmployeeBenefitPlanTaxStatusTextBlock_019d6dca-4e2f-75c1-a2c2-bb8458b21a12" xlink:href="https://xbrl.fasb.org/us-gaap/2026/ebp/elts/us-gaap-ebp-2026.xsd#us-gaap-ebp_EmployeeBenefitPlanTaxStatusTextBlock"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanTaxStatusLineItems_019d6dca-4e2f-7472-8931-ec78ab2d58bc" xlink:to="loc_us-gaap-ebp_EmployeeBenefitPlanTaxStatusTextBlock_019d6dca-4e2f-75c1-a2c2-bb8458b21a12" xlink:type="arc" order="0"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.crowncork.com/role/RISKSANDUNCERTAINTIES" xlink:type="simple" xlink:href="cck-20260618.xsd#RISKSANDUNCERTAINTIES"/>
  <link:definitionLink xlink:role="http://www.crowncork.com/role/RISKSANDUNCERTAINTIES" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap-ebp_EbpRiskAndUncertaintyLineItems_019d6dca-4e2f-77cd-9bd3-6013fd7afacd" xlink:href="https://xbrl.fasb.org/us-gaap/2026/ebp/elts/us-gaap-ebp-2026.xsd#us-gaap-ebp_EbpRiskAndUncertaintyLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap-ebp_EbpRiskAndUncertaintyTable_019d6dca-4e2f-7666-be91-bf3db76e989a" xlink:href="https://xbrl.fasb.org/us-gaap/2026/ebp/elts/us-gaap-ebp-2026.xsd#us-gaap-ebp_EbpRiskAndUncertaintyTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap-ebp_EbpRiskAndUncertaintyLineItems_019d6dca-4e2f-77cd-9bd3-6013fd7afacd" xlink:to="loc_us-gaap-ebp_EbpRiskAndUncertaintyTable_019d6dca-4e2f-7666-be91-bf3db76e989a" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_LegalEntityAxis_019d6dca-4e2f-7317-b47e-47c6e97b01ed" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_LegalEntityAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap-ebp_EbpRiskAndUncertaintyTable_019d6dca-4e2f-7666-be91-bf3db76e989a" xlink:to="loc_dei_LegalEntityAxis_019d6dca-4e2f-7317-b47e-47c6e97b01ed" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain_019d6dca-4e2f-7317-b47e-47c6e97b01ed_default" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_dei_LegalEntityAxis_019d6dca-4e2f-7317-b47e-47c6e97b01ed" xlink:to="loc_dei_EntityDomain_019d6dca-4e2f-7317-b47e-47c6e97b01ed_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain_019d6dca-4e2f-7e05-a6f0-6750ed3f972f" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_dei_LegalEntityAxis_019d6dca-4e2f-7317-b47e-47c6e97b01ed" xlink:to="loc_dei_EntityDomain_019d6dca-4e2f-7e05-a6f0-6750ed3f972f" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_cck_EBP105Member_019d6dca-4e2f-7776-accc-7f873d6e0208" xlink:href="cck-20260618.xsd#cck_EBP105Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityDomain_019d6dca-4e2f-7e05-a6f0-6750ed3f972f" xlink:to="loc_cck_EBP105Member_019d6dca-4e2f-7776-accc-7f873d6e0208" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap-ebp_EmployeeBenefitPlanRiskAndUncertaintyTextBlock_019d6dca-4e2f-76b6-a850-3c5326457aea" xlink:href="https://xbrl.fasb.org/us-gaap/2026/ebp/elts/us-gaap-ebp-2026.xsd#us-gaap-ebp_EmployeeBenefitPlanRiskAndUncertaintyTextBlock"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap-ebp_EbpRiskAndUncertaintyLineItems_019d6dca-4e2f-77cd-9bd3-6013fd7afacd" xlink:to="loc_us-gaap-ebp_EmployeeBenefitPlanRiskAndUncertaintyTextBlock_019d6dca-4e2f-76b6-a850-3c5326457aea" xlink:type="arc" order="0"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.crowncork.com/role/ScheduleHLine4aScheduleofDelinquentParticipantContribution" xlink:type="simple" xlink:href="cck-20260618.xsd#ScheduleHLine4aScheduleofDelinquentParticipantContribution"/>
  <link:definitionLink xlink:role="http://www.crowncork.com/role/ScheduleHLine4aScheduleofDelinquentParticipantContribution" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap-ebp_EmployeeBenefitPlanScheduleOfDelinquentParticipantContributionLineItems_019e3c5d-4db5-77f0-8cc2-f18527e77e66" xlink:href="https://xbrl.fasb.org/us-gaap/2026/ebp/elts/us-gaap-ebp-2026.xsd#us-gaap-ebp_EmployeeBenefitPlanScheduleOfDelinquentParticipantContributionLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap-ebp_EmployeeBenefitPlanScheduleOfDelinquentParticipantContributionTable_019e3c5d-4db5-7332-9bef-b6d56c0a6fd3" xlink:href="https://xbrl.fasb.org/us-gaap/2026/ebp/elts/us-gaap-ebp-2026.xsd#us-gaap-ebp_EmployeeBenefitPlanScheduleOfDelinquentParticipantContributionTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanScheduleOfDelinquentParticipantContributionLineItems_019e3c5d-4db5-77f0-8cc2-f18527e77e66" xlink:to="loc_us-gaap-ebp_EmployeeBenefitPlanScheduleOfDelinquentParticipantContributionTable_019e3c5d-4db5-7332-9bef-b6d56c0a6fd3" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_LegalEntityAxis_019e3c5d-4db5-7e4a-a9c4-14aca2f9f84d" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_LegalEntityAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanScheduleOfDelinquentParticipantContributionTable_019e3c5d-4db5-7332-9bef-b6d56c0a6fd3" xlink:to="loc_dei_LegalEntityAxis_019e3c5d-4db5-7e4a-a9c4-14aca2f9f84d" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain_019e3c5d-4db5-7e4a-a9c4-14aca2f9f84d_default" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_dei_LegalEntityAxis_019e3c5d-4db5-7e4a-a9c4-14aca2f9f84d" xlink:to="loc_dei_EntityDomain_019e3c5d-4db5-7e4a-a9c4-14aca2f9f84d_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain_019e3c5d-4db5-79f8-b0fe-9739ce3a7d72" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_dei_LegalEntityAxis_019e3c5d-4db5-7e4a-a9c4-14aca2f9f84d" xlink:to="loc_dei_EntityDomain_019e3c5d-4db5-79f8-b0fe-9739ce3a7d72" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_cck_EBP105Member_019e3c5d-4db5-7e26-9777-98461376678a" xlink:href="cck-20260618.xsd#cck_EBP105Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityDomain_019e3c5d-4db5-79f8-b0fe-9739ce3a7d72" xlink:to="loc_cck_EBP105Member_019e3c5d-4db5-7e26-9777-98461376678a" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap-ebp_EmployeeBenefitPlanScheduleOfDelinquentParticipantContributionTableTextBlock_019e3c5d-4db5-719e-83d0-2d0c452887ea" xlink:href="https://xbrl.fasb.org/us-gaap/2026/ebp/elts/us-gaap-ebp-2026.xsd#us-gaap-ebp_EmployeeBenefitPlanScheduleOfDelinquentParticipantContributionTableTextBlock"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanScheduleOfDelinquentParticipantContributionLineItems_019e3c5d-4db5-77f0-8cc2-f18527e77e66" xlink:to="loc_us-gaap-ebp_EmployeeBenefitPlanScheduleOfDelinquentParticipantContributionTableTextBlock_019e3c5d-4db5-719e-83d0-2d0c452887ea" xlink:type="arc" order="0"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.crowncork.com/role/ScheduleHLine4iScheduleofAssets" xlink:type="simple" xlink:href="cck-20260618.xsd#ScheduleHLine4iScheduleofAssets"/>
  <link:definitionLink xlink:role="http://www.crowncork.com/role/ScheduleHLine4iScheduleofAssets" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap-ebp_EmployeeBenefitPlanScheduleOfAssetHeldForInvestmentLineItems_019d6dca-4e2f-7d7b-ba53-1ff5a31b3bcd" xlink:href="https://xbrl.fasb.org/us-gaap/2026/ebp/elts/us-gaap-ebp-2026.xsd#us-gaap-ebp_EmployeeBenefitPlanScheduleOfAssetHeldForInvestmentLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap-ebp_EmployeeBenefitPlanScheduleOfAssetHeldForInvestmentTable_019d6dca-4e2f-7466-a5eb-58cd3d7b5644" xlink:href="https://xbrl.fasb.org/us-gaap/2026/ebp/elts/us-gaap-ebp-2026.xsd#us-gaap-ebp_EmployeeBenefitPlanScheduleOfAssetHeldForInvestmentTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanScheduleOfAssetHeldForInvestmentLineItems_019d6dca-4e2f-7d7b-ba53-1ff5a31b3bcd" xlink:to="loc_us-gaap-ebp_EmployeeBenefitPlanScheduleOfAssetHeldForInvestmentTable_019d6dca-4e2f-7466-a5eb-58cd3d7b5644" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_LegalEntityAxis_019d6dca-4e2f-75c6-8fea-bc7b00f5bcec" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_LegalEntityAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanScheduleOfAssetHeldForInvestmentTable_019d6dca-4e2f-7466-a5eb-58cd3d7b5644" xlink:to="loc_dei_LegalEntityAxis_019d6dca-4e2f-75c6-8fea-bc7b00f5bcec" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain_019d6dca-4e2f-75c6-8fea-bc7b00f5bcec_default" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_dei_LegalEntityAxis_019d6dca-4e2f-75c6-8fea-bc7b00f5bcec" xlink:to="loc_dei_EntityDomain_019d6dca-4e2f-75c6-8fea-bc7b00f5bcec_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain_019d6dca-4e2f-7fb5-b01e-42e37f44fb20" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_dei_LegalEntityAxis_019d6dca-4e2f-75c6-8fea-bc7b00f5bcec" xlink:to="loc_dei_EntityDomain_019d6dca-4e2f-7fb5-b01e-42e37f44fb20" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_cck_EBP105Member_019d6dca-4e2f-736f-adad-6b1e6a93b688" xlink:href="cck-20260618.xsd#cck_EBP105Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityDomain_019d6dca-4e2f-7fb5-b01e-42e37f44fb20" xlink:to="loc_cck_EBP105Member_019d6dca-4e2f-736f-adad-6b1e6a93b688" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap-ebp_EmployeeBenefitPlanScheduleOfAssetHeldForInvestmentTableTextBlock_019d6dca-4e2f-7f11-a3c1-40cfab58feb3" xlink:href="https://xbrl.fasb.org/us-gaap/2026/ebp/elts/us-gaap-ebp-2026.xsd#us-gaap-ebp_EmployeeBenefitPlanScheduleOfAssetHeldForInvestmentTableTextBlock"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanScheduleOfAssetHeldForInvestmentLineItems_019d6dca-4e2f-7d7b-ba53-1ff5a31b3bcd" xlink:to="loc_us-gaap-ebp_EmployeeBenefitPlanScheduleOfAssetHeldForInvestmentTableTextBlock_019d6dca-4e2f-7f11-a3c1-40cfab58feb3" xlink:type="arc" order="0"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.crowncork.com/role/SUMMARYOFSIGNIFICANTACCOUNTINGPOLICIESPolicies" xlink:type="simple" xlink:href="cck-20260618.xsd#SUMMARYOFSIGNIFICANTACCOUNTINGPOLICIESPolicies"/>
  <link:definitionLink xlink:role="http://www.crowncork.com/role/SUMMARYOFSIGNIFICANTACCOUNTINGPOLICIESPolicies" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap-ebp_EmployeeBenefitPlanAccountingPolicyLineItems_019d6dca-4e2f-7208-b917-f6b1ac744c68" xlink:href="https://xbrl.fasb.org/us-gaap/2026/ebp/elts/us-gaap-ebp-2026.xsd#us-gaap-ebp_EmployeeBenefitPlanAccountingPolicyLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap-ebp_EmployeeBenefitPlanAccountingPolicyTable_019d6dca-4e2f-7320-8325-25bcccd5658d" xlink:href="https://xbrl.fasb.org/us-gaap/2026/ebp/elts/us-gaap-ebp-2026.xsd#us-gaap-ebp_EmployeeBenefitPlanAccountingPolicyTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanAccountingPolicyLineItems_019d6dca-4e2f-7208-b917-f6b1ac744c68" xlink:to="loc_us-gaap-ebp_EmployeeBenefitPlanAccountingPolicyTable_019d6dca-4e2f-7320-8325-25bcccd5658d" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_LegalEntityAxis_019d6dca-4e2f-7359-9c9a-9421a1c5e4da" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_LegalEntityAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanAccountingPolicyTable_019d6dca-4e2f-7320-8325-25bcccd5658d" xlink:to="loc_dei_LegalEntityAxis_019d6dca-4e2f-7359-9c9a-9421a1c5e4da" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain_019d6dca-4e2f-7359-9c9a-9421a1c5e4da_default" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_dei_LegalEntityAxis_019d6dca-4e2f-7359-9c9a-9421a1c5e4da" xlink:to="loc_dei_EntityDomain_019d6dca-4e2f-7359-9c9a-9421a1c5e4da_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain_019d6dca-4e2f-73b9-8e6c-0a321221062b" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_dei_LegalEntityAxis_019d6dca-4e2f-7359-9c9a-9421a1c5e4da" xlink:to="loc_dei_EntityDomain_019d6dca-4e2f-73b9-8e6c-0a321221062b" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_cck_EBP105Member_019d6dca-4e2f-7016-b3ee-8a564f78100c" xlink:href="cck-20260618.xsd#cck_EBP105Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityDomain_019d6dca-4e2f-73b9-8e6c-0a321221062b" xlink:to="loc_cck_EBP105Member_019d6dca-4e2f-7016-b3ee-8a564f78100c" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap-ebp_EmployeeBenefitPlanBasisOfAccountingPolicyTextBlock_019d6dca-4e2f-734b-8f3d-bd680e958baf" xlink:href="https://xbrl.fasb.org/us-gaap/2026/ebp/elts/us-gaap-ebp-2026.xsd#us-gaap-ebp_EmployeeBenefitPlanBasisOfAccountingPolicyTextBlock"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanAccountingPolicyLineItems_019d6dca-4e2f-7208-b917-f6b1ac744c68" xlink:to="loc_us-gaap-ebp_EmployeeBenefitPlanBasisOfAccountingPolicyTextBlock_019d6dca-4e2f-734b-8f3d-bd680e958baf" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap-ebp_EmployeeBenefitPlanUseOfEstimatePolicyTextBlock_019d6dca-4e2f-7799-9190-6876ab6e6d8d" xlink:href="https://xbrl.fasb.org/us-gaap/2026/ebp/elts/us-gaap-ebp-2026.xsd#us-gaap-ebp_EmployeeBenefitPlanUseOfEstimatePolicyTextBlock"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanAccountingPolicyLineItems_019d6dca-4e2f-7208-b917-f6b1ac744c68" xlink:to="loc_us-gaap-ebp_EmployeeBenefitPlanUseOfEstimatePolicyTextBlock_019d6dca-4e2f-7799-9190-6876ab6e6d8d" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap-ebp_EmployeeBenefitPlanInvestmentPolicyTextBlock_019d6dca-4e2f-7697-8d68-f79159730498" xlink:href="https://xbrl.fasb.org/us-gaap/2026/ebp/elts/us-gaap-ebp-2026.xsd#us-gaap-ebp_EmployeeBenefitPlanInvestmentPolicyTextBlock"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanAccountingPolicyLineItems_019d6dca-4e2f-7208-b917-f6b1ac744c68" xlink:to="loc_us-gaap-ebp_EmployeeBenefitPlanInvestmentPolicyTextBlock_019d6dca-4e2f-7697-8d68-f79159730498" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap-ebp_EmployeeBenefitPlanNoteReceivableFromParticipantPolicyTextBlock_019d6dca-4e2f-7025-bfc0-0736ff62a04e" xlink:href="https://xbrl.fasb.org/us-gaap/2026/ebp/elts/us-gaap-ebp-2026.xsd#us-gaap-ebp_EmployeeBenefitPlanNoteReceivableFromParticipantPolicyTextBlock"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanAccountingPolicyLineItems_019d6dca-4e2f-7208-b917-f6b1ac744c68" xlink:to="loc_us-gaap-ebp_EmployeeBenefitPlanNoteReceivableFromParticipantPolicyTextBlock_019d6dca-4e2f-7025-bfc0-0736ff62a04e" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap-ebp_EmployeeBenefitPlanPaymentToParticipantPolicyTextBlock_019d6dca-4e2f-7381-a582-4283708cd4a9" xlink:href="https://xbrl.fasb.org/us-gaap/2026/ebp/elts/us-gaap-ebp-2026.xsd#us-gaap-ebp_EmployeeBenefitPlanPaymentToParticipantPolicyTextBlock"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanAccountingPolicyLineItems_019d6dca-4e2f-7208-b917-f6b1ac744c68" xlink:to="loc_us-gaap-ebp_EmployeeBenefitPlanPaymentToParticipantPolicyTextBlock_019d6dca-4e2f-7381-a582-4283708cd4a9" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap-ebp_EmployeeBenefitPlanExpensePolicyTextBlock_019d6dca-4e2f-795b-bbf6-52238a3787b6" xlink:href="https://xbrl.fasb.org/us-gaap/2026/ebp/elts/us-gaap-ebp-2026.xsd#us-gaap-ebp_EmployeeBenefitPlanExpensePolicyTextBlock"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanAccountingPolicyLineItems_019d6dca-4e2f-7208-b917-f6b1ac744c68" xlink:to="loc_us-gaap-ebp_EmployeeBenefitPlanExpensePolicyTextBlock_019d6dca-4e2f-795b-bbf6-52238a3787b6" xlink:type="arc" order="5"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.crowncork.com/role/FAIRVALUEMEASUREMENTSTables" xlink:type="simple" xlink:href="cck-20260618.xsd#FAIRVALUEMEASUREMENTSTables"/>
  <link:definitionLink xlink:role="http://www.crowncork.com/role/FAIRVALUEMEASUREMENTSTables" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap-ebp_EmployeeBenefitPlanInvestmentFairValueAndNavLineItems_019d6dca-4e2f-7978-bc6c-fe0d30622602" xlink:href="https://xbrl.fasb.org/us-gaap/2026/ebp/elts/us-gaap-ebp-2026.xsd#us-gaap-ebp_EmployeeBenefitPlanInvestmentFairValueAndNavLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap-ebp_EmployeeBenefitPlanInvestmentFairValueAndNavTable_019d6dca-4e2f-789c-a296-b1ac28a3c39d" xlink:href="https://xbrl.fasb.org/us-gaap/2026/ebp/elts/us-gaap-ebp-2026.xsd#us-gaap-ebp_EmployeeBenefitPlanInvestmentFairValueAndNavTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanInvestmentFairValueAndNavLineItems_019d6dca-4e2f-7978-bc6c-fe0d30622602" xlink:to="loc_us-gaap-ebp_EmployeeBenefitPlanInvestmentFairValueAndNavTable_019d6dca-4e2f-789c-a296-b1ac28a3c39d" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_LegalEntityAxis_019d6dca-4e2f-7f85-b137-834e21a9c58c" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_LegalEntityAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanInvestmentFairValueAndNavTable_019d6dca-4e2f-789c-a296-b1ac28a3c39d" xlink:to="loc_dei_LegalEntityAxis_019d6dca-4e2f-7f85-b137-834e21a9c58c" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain_019d6dca-4e2f-7f85-b137-834e21a9c58c_default" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_dei_LegalEntityAxis_019d6dca-4e2f-7f85-b137-834e21a9c58c" xlink:to="loc_dei_EntityDomain_019d6dca-4e2f-7f85-b137-834e21a9c58c_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain_019d6dca-4e2f-71a4-91c3-4735516aa8e8" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_dei_LegalEntityAxis_019d6dca-4e2f-7f85-b137-834e21a9c58c" xlink:to="loc_dei_EntityDomain_019d6dca-4e2f-71a4-91c3-4735516aa8e8" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_cck_EBP105Member_019d6dca-4e2f-7c37-bea2-0619951e27d0" xlink:href="cck-20260618.xsd#cck_EBP105Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityDomain_019d6dca-4e2f-71a4-91c3-4735516aa8e8" xlink:to="loc_cck_EBP105Member_019d6dca-4e2f-7c37-bea2-0619951e27d0" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap-ebp_EmployeeBenefitPlanInvestmentFairValueAndNavTableTextBlock_019d6dca-4e2f-7ddc-bbef-bf12f6493e3e" xlink:href="https://xbrl.fasb.org/us-gaap/2026/ebp/elts/us-gaap-ebp-2026.xsd#us-gaap-ebp_EmployeeBenefitPlanInvestmentFairValueAndNavTableTextBlock"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanInvestmentFairValueAndNavLineItems_019d6dca-4e2f-7978-bc6c-fe0d30622602" xlink:to="loc_us-gaap-ebp_EmployeeBenefitPlanInvestmentFairValueAndNavTableTextBlock_019d6dca-4e2f-7ddc-bbef-bf12f6493e3e" xlink:type="arc" order="0"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.crowncork.com/role/DESCRIPTIONOFPLANDetails" xlink:type="simple" xlink:href="cck-20260618.xsd#DESCRIPTIONOFPLANDetails"/>
  <link:definitionLink xlink:role="http://www.crowncork.com/role/DESCRIPTIONOFPLANDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap-ebp_EmployeeBenefitPlanDescriptionOfPlanLineItems_019d6dca-4e2f-7c19-ace0-48f8cae0c60e" xlink:href="https://xbrl.fasb.org/us-gaap/2026/ebp/elts/us-gaap-ebp-2026.xsd#us-gaap-ebp_EmployeeBenefitPlanDescriptionOfPlanLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap-ebp_EmployeeBenefitPlanDescriptionOfPlanTable_019d6dca-4e2f-7a04-99bf-162da1c958ef" xlink:href="https://xbrl.fasb.org/us-gaap/2026/ebp/elts/us-gaap-ebp-2026.xsd#us-gaap-ebp_EmployeeBenefitPlanDescriptionOfPlanTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanDescriptionOfPlanLineItems_019d6dca-4e2f-7c19-ace0-48f8cae0c60e" xlink:to="loc_us-gaap-ebp_EmployeeBenefitPlanDescriptionOfPlanTable_019d6dca-4e2f-7a04-99bf-162da1c958ef" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_LegalEntityAxis_019d6dca-4e2f-77ba-8b5b-0161fabdf7a0" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_LegalEntityAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanDescriptionOfPlanTable_019d6dca-4e2f-7a04-99bf-162da1c958ef" xlink:to="loc_dei_LegalEntityAxis_019d6dca-4e2f-77ba-8b5b-0161fabdf7a0" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain_019d6dca-4e2f-77ba-8b5b-0161fabdf7a0_default" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_dei_LegalEntityAxis_019d6dca-4e2f-77ba-8b5b-0161fabdf7a0" xlink:to="loc_dei_EntityDomain_019d6dca-4e2f-77ba-8b5b-0161fabdf7a0_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain_019d6dca-4e2f-7d1e-8711-5555c1f9e7be" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_dei_LegalEntityAxis_019d6dca-4e2f-77ba-8b5b-0161fabdf7a0" xlink:to="loc_dei_EntityDomain_019d6dca-4e2f-7d1e-8711-5555c1f9e7be" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_cck_EBP105Member_019d6dca-4e2f-7e53-9774-53e48491bea8" xlink:href="cck-20260618.xsd#cck_EBP105Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityDomain_019d6dca-4e2f-7d1e-8711-5555c1f9e7be" xlink:to="loc_cck_EBP105Member_019d6dca-4e2f-7e53-9774-53e48491bea8" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeAxis_019d6dca-4e2f-7457-bf96-b60ac41b0eeb" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_RangeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanDescriptionOfPlanTable_019d6dca-4e2f-7a04-99bf-162da1c958ef" xlink:to="loc_srt_RangeAxis_019d6dca-4e2f-7457-bf96-b60ac41b0eeb" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeMember_019d6dca-4e2f-7457-bf96-b60ac41b0eeb_default" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_RangeMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_RangeAxis_019d6dca-4e2f-7457-bf96-b60ac41b0eeb" xlink:to="loc_srt_RangeMember_019d6dca-4e2f-7457-bf96-b60ac41b0eeb_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeMember_019d6dca-4e2f-7003-9c66-4f66b8ba8609" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_RangeMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_RangeAxis_019d6dca-4e2f-7457-bf96-b60ac41b0eeb" xlink:to="loc_srt_RangeMember_019d6dca-4e2f-7003-9c66-4f66b8ba8609" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_MinimumMember_019d6dca-4e2f-7e01-8af6-6557e5816a95" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_MinimumMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RangeMember_019d6dca-4e2f-7003-9c66-4f66b8ba8609" xlink:to="loc_srt_MinimumMember_019d6dca-4e2f-7e01-8af6-6557e5816a95" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_MaximumMember_019d6dca-4e2f-7ea0-a55b-093642822d16" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_MaximumMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RangeMember_019d6dca-4e2f-7003-9c66-4f66b8ba8609" xlink:to="loc_srt_MaximumMember_019d6dca-4e2f-7ea0-a55b-093642822d16" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_cck_EBPEmployerContributionTypeAxis_019d6dca-4e2f-7e2d-a042-8e048f208091" xlink:href="cck-20260618.xsd#cck_EBPEmployerContributionTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanDescriptionOfPlanTable_019d6dca-4e2f-7a04-99bf-162da1c958ef" xlink:to="loc_cck_EBPEmployerContributionTypeAxis_019d6dca-4e2f-7e2d-a042-8e048f208091" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_cck_EBPEmployerContributionTypeDomain_019d6dca-4e2f-7e2d-a042-8e048f208091_default" xlink:href="cck-20260618.xsd#cck_EBPEmployerContributionTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_cck_EBPEmployerContributionTypeAxis_019d6dca-4e2f-7e2d-a042-8e048f208091" xlink:to="loc_cck_EBPEmployerContributionTypeDomain_019d6dca-4e2f-7e2d-a042-8e048f208091_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_cck_EBPEmployerContributionTypeDomain_019d6dca-4e2f-7c71-aef9-b9b84c6e5863" xlink:href="cck-20260618.xsd#cck_EBPEmployerContributionTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_cck_EBPEmployerContributionTypeAxis_019d6dca-4e2f-7e2d-a042-8e048f208091" xlink:to="loc_cck_EBPEmployerContributionTypeDomain_019d6dca-4e2f-7c71-aef9-b9b84c6e5863" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_cck_EBPEmployerMatchingContributionMember_019e3be6-2965-7a51-ad16-5ea8b144824b" xlink:href="cck-20260618.xsd#cck_EBPEmployerMatchingContributionMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_cck_EBPEmployerContributionTypeDomain_019d6dca-4e2f-7c71-aef9-b9b84c6e5863" xlink:to="loc_cck_EBPEmployerMatchingContributionMember_019e3be6-2965-7a51-ad16-5ea8b144824b" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_cck_EBPProfitSharingContributionMember_019d6dca-4e2f-70cf-95b9-b1dc350ae3f9" xlink:href="cck-20260618.xsd#cck_EBPProfitSharingContributionMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_cck_EBPEmployerContributionTypeDomain_019d6dca-4e2f-7c71-aef9-b9b84c6e5863" xlink:to="loc_cck_EBPProfitSharingContributionMember_019d6dca-4e2f-70cf-95b9-b1dc350ae3f9" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_cck_EBPRequisiteServicePeriod_019d6dca-4e2f-7412-8fa3-192dfdd1260c" xlink:href="cck-20260618.xsd#cck_EBPRequisiteServicePeriod"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanDescriptionOfPlanLineItems_019d6dca-4e2f-7c19-ace0-48f8cae0c60e" xlink:to="loc_cck_EBPRequisiteServicePeriod_019d6dca-4e2f-7412-8fa3-192dfdd1260c" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap-ebp_EmployeeBenefitPlanParticipantContributionAutomaticDeferralRate_019d6dca-4e2f-7c12-bcb9-3201691f2d26" xlink:href="https://xbrl.fasb.org/us-gaap/2026/ebp/elts/us-gaap-ebp-2026.xsd#us-gaap-ebp_EmployeeBenefitPlanParticipantContributionAutomaticDeferralRate"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanDescriptionOfPlanLineItems_019d6dca-4e2f-7c19-ace0-48f8cae0c60e" xlink:to="loc_us-gaap-ebp_EmployeeBenefitPlanParticipantContributionAutomaticDeferralRate_019d6dca-4e2f-7c12-bcb9-3201691f2d26" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_cck_EBPInvoluntaryCashOutLimit_019d6dca-4e2f-7047-8cec-fc48dde726e1" xlink:href="cck-20260618.xsd#cck_EBPInvoluntaryCashOutLimit"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanDescriptionOfPlanLineItems_019d6dca-4e2f-7c19-ace0-48f8cae0c60e" xlink:to="loc_cck_EBPInvoluntaryCashOutLimit_019d6dca-4e2f-7047-8cec-fc48dde726e1" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap-ebp_EmployeeBenefitPlanParticipantContributionPretaxMaximumAnnualCompensationToTotalCompensationPercentage_019d6dca-4e2f-75f6-becb-b8dc354ab2b0" xlink:href="https://xbrl.fasb.org/us-gaap/2026/ebp/elts/us-gaap-ebp-2026.xsd#us-gaap-ebp_EmployeeBenefitPlanParticipantContributionPretaxMaximumAnnualCompensationToTotalCompensationPercentage"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanDescriptionOfPlanLineItems_019d6dca-4e2f-7c19-ace0-48f8cae0c60e" xlink:to="loc_us-gaap-ebp_EmployeeBenefitPlanParticipantContributionPretaxMaximumAnnualCompensationToTotalCompensationPercentage_019d6dca-4e2f-75f6-becb-b8dc354ab2b0" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_cck_EBPParticipantContributionAfterTaxContributionToEligibleCompensationPercentage_019d6dca-4e2f-7abb-b652-6d4277b55c75" xlink:href="cck-20260618.xsd#cck_EBPParticipantContributionAfterTaxContributionToEligibleCompensationPercentage"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanDescriptionOfPlanLineItems_019d6dca-4e2f-7c19-ace0-48f8cae0c60e" xlink:to="loc_cck_EBPParticipantContributionAfterTaxContributionToEligibleCompensationPercentage_019d6dca-4e2f-7abb-b652-6d4277b55c75" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap-ebp_EmployeeBenefitPlanForm5500CaptionEmployerContribution_019d6dca-4e2f-7ba7-be75-7eba5a700826" xlink:href="https://xbrl.fasb.org/us-gaap/2026/ebp/elts/us-gaap-ebp-2026.xsd#us-gaap-ebp_EmployeeBenefitPlanForm5500CaptionEmployerContribution"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanDescriptionOfPlanLineItems_019d6dca-4e2f-7c19-ace0-48f8cae0c60e" xlink:to="loc_us-gaap-ebp_EmployeeBenefitPlanForm5500CaptionEmployerContribution_019d6dca-4e2f-7ba7-be75-7eba5a700826" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_cck_EBPEmployerContributionVestingPercentage_019d6dca-4e2f-7a7a-8dab-05975499d6ea" xlink:href="cck-20260618.xsd#cck_EBPEmployerContributionVestingPercentage"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanDescriptionOfPlanLineItems_019d6dca-4e2f-7c19-ace0-48f8cae0c60e" xlink:to="loc_cck_EBPEmployerContributionVestingPercentage_019d6dca-4e2f-7a7a-8dab-05975499d6ea" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_cck_EBPEmployerContributionVestingServicePeriod_019d6dca-4e2f-784b-b0c7-3f9751b44d55" xlink:href="cck-20260618.xsd#cck_EBPEmployerContributionVestingServicePeriod"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanDescriptionOfPlanLineItems_019d6dca-4e2f-7c19-ace0-48f8cae0c60e" xlink:to="loc_cck_EBPEmployerContributionVestingServicePeriod_019d6dca-4e2f-784b-b0c7-3f9751b44d55" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap-ebp_EmployeeBenefitPlanNoteReceivableFromParticipantAccountMinimumBorrowingAmount_019d6dca-4e2f-7cad-b080-b5abdb7ec4f7" xlink:href="https://xbrl.fasb.org/us-gaap/2026/ebp/elts/us-gaap-ebp-2026.xsd#us-gaap-ebp_EmployeeBenefitPlanNoteReceivableFromParticipantAccountMinimumBorrowingAmount"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanDescriptionOfPlanLineItems_019d6dca-4e2f-7c19-ace0-48f8cae0c60e" xlink:to="loc_us-gaap-ebp_EmployeeBenefitPlanNoteReceivableFromParticipantAccountMinimumBorrowingAmount_019d6dca-4e2f-7cad-b080-b5abdb7ec4f7" xlink:type="arc" order="8"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap-ebp_EmployeeBenefitPlanNoteReceivableFromParticipantAccountMaximumBorrowingAmount_019d6dca-4e2f-7d58-a437-f3e0c79c8f18" xlink:href="https://xbrl.fasb.org/us-gaap/2026/ebp/elts/us-gaap-ebp-2026.xsd#us-gaap-ebp_EmployeeBenefitPlanNoteReceivableFromParticipantAccountMaximumBorrowingAmount"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanDescriptionOfPlanLineItems_019d6dca-4e2f-7c19-ace0-48f8cae0c60e" xlink:to="loc_us-gaap-ebp_EmployeeBenefitPlanNoteReceivableFromParticipantAccountMaximumBorrowingAmount_019d6dca-4e2f-7d58-a437-f3e0c79c8f18" xlink:type="arc" order="9"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap-ebp_EmployeeBenefitPlanNoteReceivableFromParticipantAccountMaximumBorrowingToTotalAccountPercentage_019d6dca-4e2f-7a60-890e-035f713b42dd" xlink:href="https://xbrl.fasb.org/us-gaap/2026/ebp/elts/us-gaap-ebp-2026.xsd#us-gaap-ebp_EmployeeBenefitPlanNoteReceivableFromParticipantAccountMaximumBorrowingToTotalAccountPercentage"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanDescriptionOfPlanLineItems_019d6dca-4e2f-7c19-ace0-48f8cae0c60e" xlink:to="loc_us-gaap-ebp_EmployeeBenefitPlanNoteReceivableFromParticipantAccountMaximumBorrowingToTotalAccountPercentage_019d6dca-4e2f-7a60-890e-035f713b42dd" xlink:type="arc" order="10"/>
    <link:loc xlink:type="locator" xlink:label="loc_cck_EBPNoteReceivableFromParticipantGeneralLoanBorrowingTerm_019d6dca-4e2f-71ba-9be7-1f226ff2273a" xlink:href="cck-20260618.xsd#cck_EBPNoteReceivableFromParticipantGeneralLoanBorrowingTerm"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanDescriptionOfPlanLineItems_019d6dca-4e2f-7c19-ace0-48f8cae0c60e" xlink:to="loc_cck_EBPNoteReceivableFromParticipantGeneralLoanBorrowingTerm_019d6dca-4e2f-71ba-9be7-1f226ff2273a" xlink:type="arc" order="11"/>
    <link:loc xlink:type="locator" xlink:label="loc_cck_EBPNoteReceivableFromParticipantAccountPrimaryResidenceMaximumBorrowingTerm_019d6dca-4e2f-7037-8d77-28dab38d239c" xlink:href="cck-20260618.xsd#cck_EBPNoteReceivableFromParticipantAccountPrimaryResidenceMaximumBorrowingTerm"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanDescriptionOfPlanLineItems_019d6dca-4e2f-7c19-ace0-48f8cae0c60e" xlink:to="loc_cck_EBPNoteReceivableFromParticipantAccountPrimaryResidenceMaximumBorrowingTerm_019d6dca-4e2f-7037-8d77-28dab38d239c" xlink:type="arc" order="12"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap-ebp_EmployeeBenefitPlanParticipantLoanInterestRate_019d6dca-4e2f-7e11-b44c-d585a20c83c6" xlink:href="https://xbrl.fasb.org/us-gaap/2026/ebp/elts/us-gaap-ebp-2026.xsd#us-gaap-ebp_EmployeeBenefitPlanParticipantLoanInterestRate"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanDescriptionOfPlanLineItems_019d6dca-4e2f-7c19-ace0-48f8cae0c60e" xlink:to="loc_us-gaap-ebp_EmployeeBenefitPlanParticipantLoanInterestRate_019d6dca-4e2f-7e11-b44c-d585a20c83c6" xlink:type="arc" order="13"/>
    <link:loc xlink:type="locator" xlink:label="loc_cck_EBPRetirementAge_019d6dca-4e2f-78a9-9370-12c7da0024d8" xlink:href="cck-20260618.xsd#cck_EBPRetirementAge"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanDescriptionOfPlanLineItems_019d6dca-4e2f-7c19-ace0-48f8cae0c60e" xlink:to="loc_cck_EBPRetirementAge_019d6dca-4e2f-78a9-9370-12c7da0024d8" xlink:type="arc" order="14"/>
    <link:loc xlink:type="locator" xlink:label="loc_cck_EBPInServiceWithdrawalAge_019d6dca-4e2f-7c42-abd3-990d1fc2c1cb" xlink:href="cck-20260618.xsd#cck_EBPInServiceWithdrawalAge"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanDescriptionOfPlanLineItems_019d6dca-4e2f-7c19-ace0-48f8cae0c60e" xlink:to="loc_cck_EBPInServiceWithdrawalAge_019d6dca-4e2f-7c42-abd3-990d1fc2c1cb" xlink:type="arc" order="15"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap-ebp_EmployeeBenefitPlanForfeitedNonvestedAccount_019d6dca-4e2f-7b43-bd1d-043291500eda" xlink:href="https://xbrl.fasb.org/us-gaap/2026/ebp/elts/us-gaap-ebp-2026.xsd#us-gaap-ebp_EmployeeBenefitPlanForfeitedNonvestedAccount"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanDescriptionOfPlanLineItems_019d6dca-4e2f-7c19-ace0-48f8cae0c60e" xlink:to="loc_us-gaap-ebp_EmployeeBenefitPlanForfeitedNonvestedAccount_019d6dca-4e2f-7b43-bd1d-043291500eda" xlink:type="arc" order="16"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap-ebp_EmployeeBenefitPlanForfeitedNonvestedAccountDecreaseForEmployerContribution_019d6dca-4e2f-7dc1-9c6d-4eb986f11d6a" xlink:href="https://xbrl.fasb.org/us-gaap/2026/ebp/elts/us-gaap-ebp-2026.xsd#us-gaap-ebp_EmployeeBenefitPlanForfeitedNonvestedAccountDecreaseForEmployerContribution"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanDescriptionOfPlanLineItems_019d6dca-4e2f-7c19-ace0-48f8cae0c60e" xlink:to="loc_us-gaap-ebp_EmployeeBenefitPlanForfeitedNonvestedAccountDecreaseForEmployerContribution_019d6dca-4e2f-7dc1-9c6d-4eb986f11d6a" xlink:type="arc" order="17"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap-ebp_EmployeeBenefitPlanScheduleOfDelinquentParticipantContributionCorrected_019e3bf6-d560-710a-bc97-884c22cc9e62" xlink:href="https://xbrl.fasb.org/us-gaap/2026/ebp/elts/us-gaap-ebp-2026.xsd#us-gaap-ebp_EmployeeBenefitPlanScheduleOfDelinquentParticipantContributionCorrected"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanDescriptionOfPlanLineItems_019d6dca-4e2f-7c19-ace0-48f8cae0c60e" xlink:to="loc_us-gaap-ebp_EmployeeBenefitPlanScheduleOfDelinquentParticipantContributionCorrected_019e3bf6-d560-710a-bc97-884c22cc9e62" xlink:type="arc" order="18"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.crowncork.com/role/FAIRVALUEMEASUREMENTSInvestmentsatFairValueonRecurringBasisDetails" xlink:type="simple" xlink:href="cck-20260618.xsd#FAIRVALUEMEASUREMENTSInvestmentsatFairValueonRecurringBasisDetails"/>
  <link:definitionLink xlink:role="http://www.crowncork.com/role/FAIRVALUEMEASUREMENTSInvestmentsatFairValueonRecurringBasisDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap-ebp_EmployeeBenefitPlanInvestmentFairValueAndNavLineItems_019d6dca-4e2f-77c2-a7be-c3f39728a3f9" xlink:href="https://xbrl.fasb.org/us-gaap/2026/ebp/elts/us-gaap-ebp-2026.xsd#us-gaap-ebp_EmployeeBenefitPlanInvestmentFairValueAndNavLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap-ebp_EmployeeBenefitPlanInvestmentFairValueAndNavTable_019d6dca-4e2f-74ba-ad18-71d4385ae032" xlink:href="https://xbrl.fasb.org/us-gaap/2026/ebp/elts/us-gaap-ebp-2026.xsd#us-gaap-ebp_EmployeeBenefitPlanInvestmentFairValueAndNavTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanInvestmentFairValueAndNavLineItems_019d6dca-4e2f-77c2-a7be-c3f39728a3f9" xlink:to="loc_us-gaap-ebp_EmployeeBenefitPlanInvestmentFairValueAndNavTable_019d6dca-4e2f-74ba-ad18-71d4385ae032" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_LegalEntityAxis_019d6dca-4e2f-70cd-929c-2fe3ba5e7c84" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_LegalEntityAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanInvestmentFairValueAndNavTable_019d6dca-4e2f-74ba-ad18-71d4385ae032" xlink:to="loc_dei_LegalEntityAxis_019d6dca-4e2f-70cd-929c-2fe3ba5e7c84" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain_019d6dca-4e2f-70cd-929c-2fe3ba5e7c84_default" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_dei_LegalEntityAxis_019d6dca-4e2f-70cd-929c-2fe3ba5e7c84" xlink:to="loc_dei_EntityDomain_019d6dca-4e2f-70cd-929c-2fe3ba5e7c84_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain_019d6dca-4e2f-70e2-87ac-d0039dce33ee" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_dei_LegalEntityAxis_019d6dca-4e2f-70cd-929c-2fe3ba5e7c84" xlink:to="loc_dei_EntityDomain_019d6dca-4e2f-70e2-87ac-d0039dce33ee" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_cck_EBP105Member_019d6dca-4e2f-7ec0-a650-b8858dc54264" xlink:href="cck-20260618.xsd#cck_EBP105Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityDomain_019d6dca-4e2f-70e2-87ac-d0039dce33ee" xlink:to="loc_cck_EBP105Member_019d6dca-4e2f-7ec0-a650-b8858dc54264" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InvestmentTypeAxis_019d6dca-4e2f-71f6-ac40-7570726f61c5" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InvestmentTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanInvestmentFairValueAndNavTable_019d6dca-4e2f-74ba-ad18-71d4385ae032" xlink:to="loc_us-gaap_InvestmentTypeAxis_019d6dca-4e2f-71f6-ac40-7570726f61c5" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InvestmentTypeCategorizationMember_019d6dca-4e2f-71f6-ac40-7570726f61c5_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InvestmentTypeCategorizationMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_InvestmentTypeAxis_019d6dca-4e2f-71f6-ac40-7570726f61c5" xlink:to="loc_us-gaap_InvestmentTypeCategorizationMember_019d6dca-4e2f-71f6-ac40-7570726f61c5_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InvestmentTypeCategorizationMember_019d6dca-4e2f-77a8-b007-736d073704b0" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InvestmentTypeCategorizationMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_InvestmentTypeAxis_019d6dca-4e2f-71f6-ac40-7570726f61c5" xlink:to="loc_us-gaap_InvestmentTypeCategorizationMember_019d6dca-4e2f-77a8-b007-736d073704b0" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_cck_RegisteredInvestmentCompaniesMember_019d6dca-4e2f-748a-94dc-a37629079e8f" xlink:href="cck-20260618.xsd#cck_RegisteredInvestmentCompaniesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_InvestmentTypeCategorizationMember_019d6dca-4e2f-77a8-b007-736d073704b0" xlink:to="loc_cck_RegisteredInvestmentCompaniesMember_019d6dca-4e2f-748a-94dc-a37629079e8f" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DefinedBenefitPlanCommonCollectiveTrustMember_019e3c53-0552-777c-8dc5-c5a7d6e96b0c" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DefinedBenefitPlanCommonCollectiveTrustMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_InvestmentTypeCategorizationMember_019d6dca-4e2f-77a8-b007-736d073704b0" xlink:to="loc_us-gaap_DefinedBenefitPlanCommonCollectiveTrustMember_019e3c53-0552-777c-8dc5-c5a7d6e96b0c" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap-ebp_EmployeeBenefitPlanEmployerCommonStockFundMember_019e3c51-a6b6-777f-bf38-2a8622ca5a64" xlink:href="https://xbrl.fasb.org/us-gaap/2026/ebp/elts/us-gaap-ebp-2026.xsd#us-gaap-ebp_EmployeeBenefitPlanEmployerCommonStockFundMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_InvestmentTypeCategorizationMember_019d6dca-4e2f-77a8-b007-736d073704b0" xlink:to="loc_us-gaap-ebp_EmployeeBenefitPlanEmployerCommonStockFundMember_019e3c51-a6b6-777f-bf38-2a8622ca5a64" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis_019d6dca-4e2f-7423-a2ec-110d29d015ec" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FairValueByFairValueHierarchyLevelAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanInvestmentFairValueAndNavTable_019d6dca-4e2f-74ba-ad18-71d4385ae032" xlink:to="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis_019d6dca-4e2f-7423-a2ec-110d29d015ec" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_019d6dca-4e2f-7423-a2ec-110d29d015ec_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FairValueMeasurementsFairValueHierarchyDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis_019d6dca-4e2f-7423-a2ec-110d29d015ec" xlink:to="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_019d6dca-4e2f-7423-a2ec-110d29d015ec_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_019d6dca-4e2f-7af4-8161-3df005c2ee06" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FairValueMeasurementsFairValueHierarchyDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis_019d6dca-4e2f-7423-a2ec-110d29d015ec" xlink:to="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_019d6dca-4e2f-7af4-8161-3df005c2ee06" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueInputsLevel12And3Member_019d6dca-4e2f-760e-a4b9-011e1f2c5308" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FairValueInputsLevel12And3Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_019d6dca-4e2f-7af4-8161-3df005c2ee06" xlink:to="loc_us-gaap_FairValueInputsLevel12And3Member_019d6dca-4e2f-760e-a4b9-011e1f2c5308" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueInputsLevel1Member_019d6dca-4e2f-7f9f-b558-9b24b395f7db" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FairValueInputsLevel1Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueInputsLevel12And3Member_019d6dca-4e2f-760e-a4b9-011e1f2c5308" xlink:to="loc_us-gaap_FairValueInputsLevel1Member_019d6dca-4e2f-7f9f-b558-9b24b395f7db" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueInputsLevel2Member_019d6dca-4e2f-7813-abef-523b9393a892" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FairValueInputsLevel2Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueInputsLevel12And3Member_019d6dca-4e2f-760e-a4b9-011e1f2c5308" xlink:to="loc_us-gaap_FairValueInputsLevel2Member_019d6dca-4e2f-7813-abef-523b9393a892" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueInputsLevel3Member_019d6dca-4e2f-7716-82d3-2659e6de7166" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FairValueInputsLevel3Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueInputsLevel12And3Member_019d6dca-4e2f-760e-a4b9-011e1f2c5308" xlink:to="loc_us-gaap_FairValueInputsLevel3Member_019d6dca-4e2f-7716-82d3-2659e6de7166" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueMeasuredAtNetAssetValuePerShareMember_019d6dca-4e2f-7d7f-8e95-bd47b2bfd4cc" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FairValueMeasuredAtNetAssetValuePerShareMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_019d6dca-4e2f-7af4-8161-3df005c2ee06" xlink:to="loc_us-gaap_FairValueMeasuredAtNetAssetValuePerShareMember_019d6dca-4e2f-7d7f-8e95-bd47b2bfd4cc" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap-ebp_EmployeeBenefitPlanInvestmentExcludingPlanInterestInMasterTrustFairValue_019d6dca-4e2f-7a76-9a0e-9de30af896dc" xlink:href="https://xbrl.fasb.org/us-gaap/2026/ebp/elts/us-gaap-ebp-2026.xsd#us-gaap-ebp_EmployeeBenefitPlanInvestmentExcludingPlanInterestInMasterTrustFairValue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanInvestmentFairValueAndNavLineItems_019d6dca-4e2f-77c2-a7be-c3f39728a3f9" xlink:to="loc_us-gaap-ebp_EmployeeBenefitPlanInvestmentExcludingPlanInterestInMasterTrustFairValue_019d6dca-4e2f-7a76-9a0e-9de30af896dc" xlink:type="arc" order="0"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.crowncork.com/role/FAIRVALUEMEASUREMENTSInvestmentsatNAVDetails" xlink:type="simple" xlink:href="cck-20260618.xsd#FAIRVALUEMEASUREMENTSInvestmentsatNAVDetails"/>
  <link:definitionLink xlink:role="http://www.crowncork.com/role/FAIRVALUEMEASUREMENTSInvestmentsatNAVDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap-ebp_EmployeeBenefitPlanInvestmentFairValueAndNavLineItems_019d6dca-4e2f-7322-af27-3f2df18d4cab" xlink:href="https://xbrl.fasb.org/us-gaap/2026/ebp/elts/us-gaap-ebp-2026.xsd#us-gaap-ebp_EmployeeBenefitPlanInvestmentFairValueAndNavLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap-ebp_EmployeeBenefitPlanInvestmentFairValueAndNavTable_019d6dca-4e2f-745b-b414-62e251213e9f" xlink:href="https://xbrl.fasb.org/us-gaap/2026/ebp/elts/us-gaap-ebp-2026.xsd#us-gaap-ebp_EmployeeBenefitPlanInvestmentFairValueAndNavTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanInvestmentFairValueAndNavLineItems_019d6dca-4e2f-7322-af27-3f2df18d4cab" xlink:to="loc_us-gaap-ebp_EmployeeBenefitPlanInvestmentFairValueAndNavTable_019d6dca-4e2f-745b-b414-62e251213e9f" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_LegalEntityAxis_019d6dca-4e2f-776a-8522-aa89b8954932" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_LegalEntityAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanInvestmentFairValueAndNavTable_019d6dca-4e2f-745b-b414-62e251213e9f" xlink:to="loc_dei_LegalEntityAxis_019d6dca-4e2f-776a-8522-aa89b8954932" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain_019d6dca-4e2f-776a-8522-aa89b8954932_default" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_dei_LegalEntityAxis_019d6dca-4e2f-776a-8522-aa89b8954932" xlink:to="loc_dei_EntityDomain_019d6dca-4e2f-776a-8522-aa89b8954932_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain_019d6dca-4e2f-7f50-8965-a476a0c90c96" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_dei_LegalEntityAxis_019d6dca-4e2f-776a-8522-aa89b8954932" xlink:to="loc_dei_EntityDomain_019d6dca-4e2f-7f50-8965-a476a0c90c96" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_cck_EBP105Member_019d6dca-4e2f-74ca-8108-686c0bae906c" xlink:href="cck-20260618.xsd#cck_EBP105Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityDomain_019d6dca-4e2f-7f50-8965-a476a0c90c96" xlink:to="loc_cck_EBP105Member_019d6dca-4e2f-74ca-8108-686c0bae906c" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis_019d6dca-4e2f-7cde-bf67-4f9f18d8c924" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FairValueByFairValueHierarchyLevelAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanInvestmentFairValueAndNavTable_019d6dca-4e2f-745b-b414-62e251213e9f" xlink:to="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis_019d6dca-4e2f-7cde-bf67-4f9f18d8c924" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_019d6dca-4e2f-7cde-bf67-4f9f18d8c924_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FairValueMeasurementsFairValueHierarchyDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis_019d6dca-4e2f-7cde-bf67-4f9f18d8c924" xlink:to="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_019d6dca-4e2f-7cde-bf67-4f9f18d8c924_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_019d6dca-4e2f-7d97-86a0-b8ac03a80230" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FairValueMeasurementsFairValueHierarchyDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis_019d6dca-4e2f-7cde-bf67-4f9f18d8c924" xlink:to="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_019d6dca-4e2f-7d97-86a0-b8ac03a80230" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueMeasuredAtNetAssetValuePerShareMember_019d6dca-4e2f-73b4-9625-2aae88a11623" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_FairValueMeasuredAtNetAssetValuePerShareMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_019d6dca-4e2f-7d97-86a0-b8ac03a80230" xlink:to="loc_us-gaap_FairValueMeasuredAtNetAssetValuePerShareMember_019d6dca-4e2f-73b4-9625-2aae88a11623" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InvestmentTypeAxis_019d6dca-4e2f-7a86-95b0-221ef0857025" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InvestmentTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanInvestmentFairValueAndNavTable_019d6dca-4e2f-745b-b414-62e251213e9f" xlink:to="loc_us-gaap_InvestmentTypeAxis_019d6dca-4e2f-7a86-95b0-221ef0857025" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InvestmentTypeCategorizationMember_019d6dca-4e2f-7a86-95b0-221ef0857025_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InvestmentTypeCategorizationMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_InvestmentTypeAxis_019d6dca-4e2f-7a86-95b0-221ef0857025" xlink:to="loc_us-gaap_InvestmentTypeCategorizationMember_019d6dca-4e2f-7a86-95b0-221ef0857025_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InvestmentTypeCategorizationMember_019d6dca-4e2f-75e3-b893-4ef635519de8" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InvestmentTypeCategorizationMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_InvestmentTypeAxis_019d6dca-4e2f-7a86-95b0-221ef0857025" xlink:to="loc_us-gaap_InvestmentTypeCategorizationMember_019d6dca-4e2f-75e3-b893-4ef635519de8" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DefinedBenefitPlanCommonCollectiveTrustMember_019d6dca-4e2f-75a1-b129-5304fe304b2d" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DefinedBenefitPlanCommonCollectiveTrustMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_InvestmentTypeCategorizationMember_019d6dca-4e2f-75e3-b893-4ef635519de8" xlink:to="loc_us-gaap_DefinedBenefitPlanCommonCollectiveTrustMember_019d6dca-4e2f-75a1-b129-5304fe304b2d" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap-ebp_EmployeeBenefitPlanInvestmentExcludingPlanInterestInMasterTrustFairValue_019d6dca-4e2f-78aa-b5f6-58cc3275b0c8" xlink:href="https://xbrl.fasb.org/us-gaap/2026/ebp/elts/us-gaap-ebp-2026.xsd#us-gaap-ebp_EmployeeBenefitPlanInvestmentExcludingPlanInterestInMasterTrustFairValue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanInvestmentFairValueAndNavLineItems_019d6dca-4e2f-7322-af27-3f2df18d4cab" xlink:to="loc_us-gaap-ebp_EmployeeBenefitPlanInvestmentExcludingPlanInterestInMasterTrustFairValue_019d6dca-4e2f-78aa-b5f6-58cc3275b0c8" xlink:type="arc" order="0"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.crowncork.com/role/RELATEDPARTYTRANSACTIONSDetails" xlink:type="simple" xlink:href="cck-20260618.xsd#RELATEDPARTYTRANSACTIONSDetails"/>
  <link:definitionLink xlink:role="http://www.crowncork.com/role/RELATEDPARTYTRANSACTIONSDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap-ebp_EmployeeBenefitPlanRelatedPartyAndPartyInInterestTransactionsLineItems_019d6dca-4e2f-719c-92a2-f6f3da9969a6" xlink:href="https://xbrl.fasb.org/us-gaap/2026/ebp/elts/us-gaap-ebp-2026.xsd#us-gaap-ebp_EmployeeBenefitPlanRelatedPartyAndPartyInInterestTransactionsLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap-ebp_EmployeeBenefitPlanRelatedPartyAndPartyInInterestTransactionsTable_019d6dca-4e2f-7c90-831e-f252c6dd5d24" xlink:href="https://xbrl.fasb.org/us-gaap/2026/ebp/elts/us-gaap-ebp-2026.xsd#us-gaap-ebp_EmployeeBenefitPlanRelatedPartyAndPartyInInterestTransactionsTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanRelatedPartyAndPartyInInterestTransactionsLineItems_019d6dca-4e2f-719c-92a2-f6f3da9969a6" xlink:to="loc_us-gaap-ebp_EmployeeBenefitPlanRelatedPartyAndPartyInInterestTransactionsTable_019d6dca-4e2f-7c90-831e-f252c6dd5d24" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_LegalEntityAxis_019d6dca-4e2f-7d37-8f7f-2c1f84bd8289" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_LegalEntityAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanRelatedPartyAndPartyInInterestTransactionsTable_019d6dca-4e2f-7c90-831e-f252c6dd5d24" xlink:to="loc_dei_LegalEntityAxis_019d6dca-4e2f-7d37-8f7f-2c1f84bd8289" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain_019d6dca-4e2f-7d37-8f7f-2c1f84bd8289_default" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_dei_LegalEntityAxis_019d6dca-4e2f-7d37-8f7f-2c1f84bd8289" xlink:to="loc_dei_EntityDomain_019d6dca-4e2f-7d37-8f7f-2c1f84bd8289_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain_019d6dca-4e2f-7b85-8fa9-e7c2718abdfb" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_dei_LegalEntityAxis_019d6dca-4e2f-7d37-8f7f-2c1f84bd8289" xlink:to="loc_dei_EntityDomain_019d6dca-4e2f-7b85-8fa9-e7c2718abdfb" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_cck_EBP105Member_019d6dca-4e2f-721e-932c-b387e285133c" xlink:href="cck-20260618.xsd#cck_EBP105Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityDomain_019d6dca-4e2f-7b85-8fa9-e7c2718abdfb" xlink:to="loc_cck_EBP105Member_019d6dca-4e2f-721e-932c-b387e285133c" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap-ebp_EmployeeBenefitPlanRelatedPartyAndPartyInInterestAxis_019e3c58-b669-79aa-8547-60f931a59413" xlink:href="https://xbrl.fasb.org/us-gaap/2026/ebp/elts/us-gaap-ebp-2026.xsd#us-gaap-ebp_EmployeeBenefitPlanRelatedPartyAndPartyInInterestAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanRelatedPartyAndPartyInInterestTransactionsTable_019d6dca-4e2f-7c90-831e-f252c6dd5d24" xlink:to="loc_us-gaap-ebp_EmployeeBenefitPlanRelatedPartyAndPartyInInterestAxis_019e3c58-b669-79aa-8547-60f931a59413" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap-ebp_EmployeeBenefitPlanRelatedPartyAndPartyInInterestDomain_019e3c58-b669-79aa-8547-60f931a59413_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/ebp/elts/us-gaap-ebp-2026.xsd#us-gaap-ebp_EmployeeBenefitPlanRelatedPartyAndPartyInInterestDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanRelatedPartyAndPartyInInterestAxis_019e3c58-b669-79aa-8547-60f931a59413" xlink:to="loc_us-gaap-ebp_EmployeeBenefitPlanRelatedPartyAndPartyInInterestDomain_019e3c58-b669-79aa-8547-60f931a59413_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap-ebp_EmployeeBenefitPlanRelatedPartyAndPartyInInterestDomain_019e3c58-e3b5-76dd-833d-255b108621c0" xlink:href="https://xbrl.fasb.org/us-gaap/2026/ebp/elts/us-gaap-ebp-2026.xsd#us-gaap-ebp_EmployeeBenefitPlanRelatedPartyAndPartyInInterestDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanRelatedPartyAndPartyInInterestAxis_019e3c58-b669-79aa-8547-60f931a59413" xlink:to="loc_us-gaap-ebp_EmployeeBenefitPlanRelatedPartyAndPartyInInterestDomain_019e3c58-e3b5-76dd-833d-255b108621c0" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap-ebp_EmployeeBenefitPlanTrusteeMember_019e3c58-fced-7b9f-b59c-df838a517845" xlink:href="https://xbrl.fasb.org/us-gaap/2026/ebp/elts/us-gaap-ebp-2026.xsd#us-gaap-ebp_EmployeeBenefitPlanTrusteeMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanRelatedPartyAndPartyInInterestDomain_019e3c58-e3b5-76dd-833d-255b108621c0" xlink:to="loc_us-gaap-ebp_EmployeeBenefitPlanTrusteeMember_019e3c58-fced-7b9f-b59c-df838a517845" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InvestmentTypeAxis_019d6dca-4e2f-7afe-9144-28c34ca94206" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InvestmentTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanRelatedPartyAndPartyInInterestTransactionsTable_019d6dca-4e2f-7c90-831e-f252c6dd5d24" xlink:to="loc_us-gaap_InvestmentTypeAxis_019d6dca-4e2f-7afe-9144-28c34ca94206" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InvestmentTypeCategorizationMember_019d6dca-4e2f-7afe-9144-28c34ca94206_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InvestmentTypeCategorizationMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_InvestmentTypeAxis_019d6dca-4e2f-7afe-9144-28c34ca94206" xlink:to="loc_us-gaap_InvestmentTypeCategorizationMember_019d6dca-4e2f-7afe-9144-28c34ca94206_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InvestmentTypeCategorizationMember_019d6dca-4e2f-75d8-85d9-5b9f91e21bb8" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InvestmentTypeCategorizationMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_InvestmentTypeAxis_019d6dca-4e2f-7afe-9144-28c34ca94206" xlink:to="loc_us-gaap_InvestmentTypeCategorizationMember_019d6dca-4e2f-75d8-85d9-5b9f91e21bb8" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap-ebp_EmployeeBenefitPlanEmployerCommonStockFundMember_019d6dca-4e2f-74df-890b-a16fa7ed1095" xlink:href="https://xbrl.fasb.org/us-gaap/2026/ebp/elts/us-gaap-ebp-2026.xsd#us-gaap-ebp_EmployeeBenefitPlanEmployerCommonStockFundMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_InvestmentTypeCategorizationMember_019d6dca-4e2f-75d8-85d9-5b9f91e21bb8" xlink:to="loc_us-gaap-ebp_EmployeeBenefitPlanEmployerCommonStockFundMember_019d6dca-4e2f-74df-890b-a16fa7ed1095" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap-ebp_EmployeeBenefitPlanInvestmentExcludingPlanInterestInMasterTrustFairValue_019d6dca-4e2f-7b2d-a419-656e87e1180e" xlink:href="https://xbrl.fasb.org/us-gaap/2026/ebp/elts/us-gaap-ebp-2026.xsd#us-gaap-ebp_EmployeeBenefitPlanInvestmentExcludingPlanInterestInMasterTrustFairValue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanRelatedPartyAndPartyInInterestTransactionsLineItems_019d6dca-4e2f-719c-92a2-f6f3da9969a6" xlink:to="loc_us-gaap-ebp_EmployeeBenefitPlanInvestmentExcludingPlanInterestInMasterTrustFairValue_019d6dca-4e2f-7b2d-a419-656e87e1180e" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap-ebp_EmployeeBenefitPlanInvestmentNumberOfShares_019d6dca-4e2f-74fc-a258-87f10d0ee48c" xlink:href="https://xbrl.fasb.org/us-gaap/2026/ebp/elts/us-gaap-ebp-2026.xsd#us-gaap-ebp_EmployeeBenefitPlanInvestmentNumberOfShares"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanRelatedPartyAndPartyInInterestTransactionsLineItems_019d6dca-4e2f-719c-92a2-f6f3da9969a6" xlink:to="loc_us-gaap-ebp_EmployeeBenefitPlanInvestmentNumberOfShares_019d6dca-4e2f-74fc-a258-87f10d0ee48c" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap-ebp_EmployeeBenefitPlanInvestmentEmployerCommonStockToTotalAssetPercentage_019d6dca-4e2f-7254-81d5-9c5180a93c1c" xlink:href="https://xbrl.fasb.org/us-gaap/2026/ebp/elts/us-gaap-ebp-2026.xsd#us-gaap-ebp_EmployeeBenefitPlanInvestmentEmployerCommonStockToTotalAssetPercentage"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanRelatedPartyAndPartyInInterestTransactionsLineItems_019d6dca-4e2f-719c-92a2-f6f3da9969a6" xlink:to="loc_us-gaap-ebp_EmployeeBenefitPlanInvestmentEmployerCommonStockToTotalAssetPercentage_019d6dca-4e2f-7254-81d5-9c5180a93c1c" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap-ebp_EmployeeBenefitPlanInvestmentAcquiredExcludingPlanInterestInMasterTrustCost_019d6dca-4e2f-7750-9e04-121a4d1ebc75" xlink:href="https://xbrl.fasb.org/us-gaap/2026/ebp/elts/us-gaap-ebp-2026.xsd#us-gaap-ebp_EmployeeBenefitPlanInvestmentAcquiredExcludingPlanInterestInMasterTrustCost"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanRelatedPartyAndPartyInInterestTransactionsLineItems_019d6dca-4e2f-719c-92a2-f6f3da9969a6" xlink:to="loc_us-gaap-ebp_EmployeeBenefitPlanInvestmentAcquiredExcludingPlanInterestInMasterTrustCost_019d6dca-4e2f-7750-9e04-121a4d1ebc75" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap-ebp_EmployeeBenefitPlanInvestmentSoldExcludingPlanInterestInMasterTrustSellingPrice_019d6dca-4e2f-7eda-b6c2-d1968037f4ba" xlink:href="https://xbrl.fasb.org/us-gaap/2026/ebp/elts/us-gaap-ebp-2026.xsd#us-gaap-ebp_EmployeeBenefitPlanInvestmentSoldExcludingPlanInterestInMasterTrustSellingPrice"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanRelatedPartyAndPartyInInterestTransactionsLineItems_019d6dca-4e2f-719c-92a2-f6f3da9969a6" xlink:to="loc_us-gaap-ebp_EmployeeBenefitPlanInvestmentSoldExcludingPlanInterestInMasterTrustSellingPrice_019d6dca-4e2f-7eda-b6c2-d1968037f4ba" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap-ebp_EmployeeBenefitPlanChangeInNetAssetAvailableForBenefitIncreaseForDividendIncomeOnInvestment_019d6dca-4e2f-7462-bdda-acc0415955c1" xlink:href="https://xbrl.fasb.org/us-gaap/2026/ebp/elts/us-gaap-ebp-2026.xsd#us-gaap-ebp_EmployeeBenefitPlanChangeInNetAssetAvailableForBenefitIncreaseForDividendIncomeOnInvestment"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanRelatedPartyAndPartyInInterestTransactionsLineItems_019d6dca-4e2f-719c-92a2-f6f3da9969a6" xlink:to="loc_us-gaap-ebp_EmployeeBenefitPlanChangeInNetAssetAvailableForBenefitIncreaseForDividendIncomeOnInvestment_019d6dca-4e2f-7462-bdda-acc0415955c1" xlink:type="arc" order="5"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.crowncork.com/role/RISKSANDUNCERTAINTIESDetails" xlink:type="simple" xlink:href="cck-20260618.xsd#RISKSANDUNCERTAINTIESDetails"/>
  <link:definitionLink xlink:role="http://www.crowncork.com/role/RISKSANDUNCERTAINTIESDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap-ebp_EbpRiskAndUncertaintyLineItems_019d6dca-4e2f-701c-b615-a3fceb23af4f" xlink:href="https://xbrl.fasb.org/us-gaap/2026/ebp/elts/us-gaap-ebp-2026.xsd#us-gaap-ebp_EbpRiskAndUncertaintyLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap-ebp_EbpRiskAndUncertaintyTable_019d6dca-4e2f-7c1b-acdf-5aaaab309f62" xlink:href="https://xbrl.fasb.org/us-gaap/2026/ebp/elts/us-gaap-ebp-2026.xsd#us-gaap-ebp_EbpRiskAndUncertaintyTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap-ebp_EbpRiskAndUncertaintyLineItems_019d6dca-4e2f-701c-b615-a3fceb23af4f" xlink:to="loc_us-gaap-ebp_EbpRiskAndUncertaintyTable_019d6dca-4e2f-7c1b-acdf-5aaaab309f62" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_LegalEntityAxis_019d6dca-4e2f-7470-a06d-448944ca5438" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_LegalEntityAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap-ebp_EbpRiskAndUncertaintyTable_019d6dca-4e2f-7c1b-acdf-5aaaab309f62" xlink:to="loc_dei_LegalEntityAxis_019d6dca-4e2f-7470-a06d-448944ca5438" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain_019d6dca-4e2f-7470-a06d-448944ca5438_default" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_dei_LegalEntityAxis_019d6dca-4e2f-7470-a06d-448944ca5438" xlink:to="loc_dei_EntityDomain_019d6dca-4e2f-7470-a06d-448944ca5438_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain_019d6dca-4e2f-73d6-8188-9feb4ad5c5d2" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_dei_LegalEntityAxis_019d6dca-4e2f-7470-a06d-448944ca5438" xlink:to="loc_dei_EntityDomain_019d6dca-4e2f-73d6-8188-9feb4ad5c5d2" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_cck_EBP105Member_019d6dca-4e2f-707f-aa18-4cabf92cffb6" xlink:href="cck-20260618.xsd#cck_EBP105Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityDomain_019d6dca-4e2f-73d6-8188-9feb4ad5c5d2" xlink:to="loc_cck_EBP105Member_019d6dca-4e2f-707f-aa18-4cabf92cffb6" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap-ebp_EbpRiskAndUncertaintyConcentrationOfInvestmentAtFairValueToTotalInvestmentsAmount_019d6dca-4e2f-76b3-a32f-8c64e8cadfbb" xlink:href="https://xbrl.fasb.org/us-gaap/2026/ebp/elts/us-gaap-ebp-2026.xsd#us-gaap-ebp_EbpRiskAndUncertaintyConcentrationOfInvestmentAtFairValueToTotalInvestmentsAmount"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap-ebp_EbpRiskAndUncertaintyLineItems_019d6dca-4e2f-701c-b615-a3fceb23af4f" xlink:to="loc_us-gaap-ebp_EbpRiskAndUncertaintyConcentrationOfInvestmentAtFairValueToTotalInvestmentsAmount_019d6dca-4e2f-76b3-a32f-8c64e8cadfbb" xlink:type="arc" order="0"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.crowncork.com/role/ScheduleHLine4aScheduleofDelinquentParticipantContributionDetails" xlink:type="simple" xlink:href="cck-20260618.xsd#ScheduleHLine4aScheduleofDelinquentParticipantContributionDetails"/>
  <link:definitionLink xlink:role="http://www.crowncork.com/role/ScheduleHLine4aScheduleofDelinquentParticipantContributionDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap-ebp_EmployeeBenefitPlanScheduleOfDelinquentParticipantContributionLineItems_019e3c5d-4db5-750c-a3d6-30ca78eaec7d" xlink:href="https://xbrl.fasb.org/us-gaap/2026/ebp/elts/us-gaap-ebp-2026.xsd#us-gaap-ebp_EmployeeBenefitPlanScheduleOfDelinquentParticipantContributionLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap-ebp_EmployeeBenefitPlanScheduleOfDelinquentParticipantContributionTable_019e3c5d-4db5-77a1-997b-9ef0f694e2f4" xlink:href="https://xbrl.fasb.org/us-gaap/2026/ebp/elts/us-gaap-ebp-2026.xsd#us-gaap-ebp_EmployeeBenefitPlanScheduleOfDelinquentParticipantContributionTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanScheduleOfDelinquentParticipantContributionLineItems_019e3c5d-4db5-750c-a3d6-30ca78eaec7d" xlink:to="loc_us-gaap-ebp_EmployeeBenefitPlanScheduleOfDelinquentParticipantContributionTable_019e3c5d-4db5-77a1-997b-9ef0f694e2f4" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_LegalEntityAxis_019e3c5d-4db5-7155-8d20-9665f3f2a90c" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_LegalEntityAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanScheduleOfDelinquentParticipantContributionTable_019e3c5d-4db5-77a1-997b-9ef0f694e2f4" xlink:to="loc_dei_LegalEntityAxis_019e3c5d-4db5-7155-8d20-9665f3f2a90c" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain_019e3c5d-4db5-7155-8d20-9665f3f2a90c_default" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_dei_LegalEntityAxis_019e3c5d-4db5-7155-8d20-9665f3f2a90c" xlink:to="loc_dei_EntityDomain_019e3c5d-4db5-7155-8d20-9665f3f2a90c_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain_019e3c5d-4db5-7603-8a76-19d90fbc3c7b" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_dei_LegalEntityAxis_019e3c5d-4db5-7155-8d20-9665f3f2a90c" xlink:to="loc_dei_EntityDomain_019e3c5d-4db5-7603-8a76-19d90fbc3c7b" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_cck_EBP105Member_019e3c5d-4db5-7dcb-994f-ab0d44f0b9a0" xlink:href="cck-20260618.xsd#cck_EBP105Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityDomain_019e3c5d-4db5-7603-8a76-19d90fbc3c7b" xlink:to="loc_cck_EBP105Member_019e3c5d-4db5-7dcb-994f-ab0d44f0b9a0" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap-ebp_EmployeeBenefitPlanScheduleOfDelinquentParticipantContributionTransferredLateToPlan_019e3c5d-4db5-73cc-b624-8ea927bfa79e" xlink:href="https://xbrl.fasb.org/us-gaap/2026/ebp/elts/us-gaap-ebp-2026.xsd#us-gaap-ebp_EmployeeBenefitPlanScheduleOfDelinquentParticipantContributionTransferredLateToPlan"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanScheduleOfDelinquentParticipantContributionLineItems_019e3c5d-4db5-750c-a3d6-30ca78eaec7d" xlink:to="loc_us-gaap-ebp_EmployeeBenefitPlanScheduleOfDelinquentParticipantContributionTransferredLateToPlan_019e3c5d-4db5-73cc-b624-8ea927bfa79e" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap-ebp_EmployeeBenefitPlanScheduleOfDelinquentParticipantContributionNotCorrected_019e3c5d-4db5-78da-b7f9-97213239d19c" xlink:href="https://xbrl.fasb.org/us-gaap/2026/ebp/elts/us-gaap-ebp-2026.xsd#us-gaap-ebp_EmployeeBenefitPlanScheduleOfDelinquentParticipantContributionNotCorrected"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanScheduleOfDelinquentParticipantContributionLineItems_019e3c5d-4db5-750c-a3d6-30ca78eaec7d" xlink:to="loc_us-gaap-ebp_EmployeeBenefitPlanScheduleOfDelinquentParticipantContributionNotCorrected_019e3c5d-4db5-78da-b7f9-97213239d19c" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap-ebp_EmployeeBenefitPlanScheduleOfDelinquentParticipantContributionCorrectedOutsideVfcp_019e3c5d-4db5-7475-927c-561ba07c06ad" xlink:href="https://xbrl.fasb.org/us-gaap/2026/ebp/elts/us-gaap-ebp-2026.xsd#us-gaap-ebp_EmployeeBenefitPlanScheduleOfDelinquentParticipantContributionCorrectedOutsideVfcp"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanScheduleOfDelinquentParticipantContributionLineItems_019e3c5d-4db5-750c-a3d6-30ca78eaec7d" xlink:to="loc_us-gaap-ebp_EmployeeBenefitPlanScheduleOfDelinquentParticipantContributionCorrectedOutsideVfcp_019e3c5d-4db5-7475-927c-561ba07c06ad" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap-ebp_EmployeeBenefitPlanScheduleOfDelinquentParticipantContributionPendingCorrectionInVfcp_019e3c5d-4db5-7c07-886a-d8db1b7c8fc9" xlink:href="https://xbrl.fasb.org/us-gaap/2026/ebp/elts/us-gaap-ebp-2026.xsd#us-gaap-ebp_EmployeeBenefitPlanScheduleOfDelinquentParticipantContributionPendingCorrectionInVfcp"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanScheduleOfDelinquentParticipantContributionLineItems_019e3c5d-4db5-750c-a3d6-30ca78eaec7d" xlink:to="loc_us-gaap-ebp_EmployeeBenefitPlanScheduleOfDelinquentParticipantContributionPendingCorrectionInVfcp_019e3c5d-4db5-7c07-886a-d8db1b7c8fc9" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap-ebp_EmployeeBenefitPlanScheduleOfDelinquentParticipantContributionCorrected_019e3c5d-4db5-787e-9744-2e26cc7f50f2" xlink:href="https://xbrl.fasb.org/us-gaap/2026/ebp/elts/us-gaap-ebp-2026.xsd#us-gaap-ebp_EmployeeBenefitPlanScheduleOfDelinquentParticipantContributionCorrected"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanScheduleOfDelinquentParticipantContributionLineItems_019e3c5d-4db5-750c-a3d6-30ca78eaec7d" xlink:to="loc_us-gaap-ebp_EmployeeBenefitPlanScheduleOfDelinquentParticipantContributionCorrected_019e3c5d-4db5-787e-9744-2e26cc7f50f2" xlink:type="arc" order="4"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.crowncork.com/role/ScheduleHLine4iScheduleofAssetsDetails" xlink:type="simple" xlink:href="cck-20260618.xsd#ScheduleHLine4iScheduleofAssetsDetails"/>
  <link:definitionLink xlink:role="http://www.crowncork.com/role/ScheduleHLine4iScheduleofAssetsDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap-ebp_EmployeeBenefitPlanScheduleOfAssetHeldForInvestmentLineItems_019d6dca-4e2f-7a1b-a3c8-8ea2299592f1" xlink:href="https://xbrl.fasb.org/us-gaap/2026/ebp/elts/us-gaap-ebp-2026.xsd#us-gaap-ebp_EmployeeBenefitPlanScheduleOfAssetHeldForInvestmentLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap-ebp_EmployeeBenefitPlanScheduleOfAssetHeldForInvestmentTable_019d6dca-4e2f-7ab2-8ab6-67b5604db79e" xlink:href="https://xbrl.fasb.org/us-gaap/2026/ebp/elts/us-gaap-ebp-2026.xsd#us-gaap-ebp_EmployeeBenefitPlanScheduleOfAssetHeldForInvestmentTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanScheduleOfAssetHeldForInvestmentLineItems_019d6dca-4e2f-7a1b-a3c8-8ea2299592f1" xlink:to="loc_us-gaap-ebp_EmployeeBenefitPlanScheduleOfAssetHeldForInvestmentTable_019d6dca-4e2f-7ab2-8ab6-67b5604db79e" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_LegalEntityAxis_019d6dca-4e2f-7369-a733-55488732c014" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_LegalEntityAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanScheduleOfAssetHeldForInvestmentTable_019d6dca-4e2f-7ab2-8ab6-67b5604db79e" xlink:to="loc_dei_LegalEntityAxis_019d6dca-4e2f-7369-a733-55488732c014" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain_019d6dca-4e2f-7369-a733-55488732c014_default" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_dei_LegalEntityAxis_019d6dca-4e2f-7369-a733-55488732c014" xlink:to="loc_dei_EntityDomain_019d6dca-4e2f-7369-a733-55488732c014_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain_019d6dca-4e2f-7b14-b9a0-f43d1504f2c1" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_dei_LegalEntityAxis_019d6dca-4e2f-7369-a733-55488732c014" xlink:to="loc_dei_EntityDomain_019d6dca-4e2f-7b14-b9a0-f43d1504f2c1" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_cck_EBP105Member_019d6dca-4e2f-77e8-9d4f-0de4c3894a86" xlink:href="cck-20260618.xsd#cck_EBP105Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityDomain_019d6dca-4e2f-7b14-b9a0-f43d1504f2c1" xlink:to="loc_cck_EBP105Member_019d6dca-4e2f-77e8-9d4f-0de4c3894a86" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InvestmentTypeAxis_019d6dca-4e2f-7a84-9a64-cdfe00e857cc" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InvestmentTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanScheduleOfAssetHeldForInvestmentTable_019d6dca-4e2f-7ab2-8ab6-67b5604db79e" xlink:to="loc_us-gaap_InvestmentTypeAxis_019d6dca-4e2f-7a84-9a64-cdfe00e857cc" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InvestmentTypeCategorizationMember_019d6dca-4e2f-7a84-9a64-cdfe00e857cc_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InvestmentTypeCategorizationMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_InvestmentTypeAxis_019d6dca-4e2f-7a84-9a64-cdfe00e857cc" xlink:to="loc_us-gaap_InvestmentTypeCategorizationMember_019d6dca-4e2f-7a84-9a64-cdfe00e857cc_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InvestmentTypeCategorizationMember_019d6dca-4e2f-703b-9952-956519e2e09e" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InvestmentTypeCategorizationMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_InvestmentTypeAxis_019d6dca-4e2f-7a84-9a64-cdfe00e857cc" xlink:to="loc_us-gaap_InvestmentTypeCategorizationMember_019d6dca-4e2f-703b-9952-956519e2e09e" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DefinedBenefitPlanCommonCollectiveTrustMember_019d6dca-4e2f-7cf4-808b-8c04969936f6" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DefinedBenefitPlanCommonCollectiveTrustMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_InvestmentTypeCategorizationMember_019d6dca-4e2f-703b-9952-956519e2e09e" xlink:to="loc_us-gaap_DefinedBenefitPlanCommonCollectiveTrustMember_019d6dca-4e2f-7cf4-808b-8c04969936f6" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap-ebp_EmployeeBenefitPlanEmployerCommonStockFundMember_019e3c4f-9fc4-754d-a80d-ab6f429a9e5f" xlink:href="https://xbrl.fasb.org/us-gaap/2026/ebp/elts/us-gaap-ebp-2026.xsd#us-gaap-ebp_EmployeeBenefitPlanEmployerCommonStockFundMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_InvestmentTypeCategorizationMember_019d6dca-4e2f-703b-9952-956519e2e09e" xlink:to="loc_us-gaap-ebp_EmployeeBenefitPlanEmployerCommonStockFundMember_019e3c4f-9fc4-754d-a80d-ab6f429a9e5f" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InvestmentIdentifierAxis_019d6dca-4e2f-7113-831c-1cd0f45a046e" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InvestmentIdentifierAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanScheduleOfAssetHeldForInvestmentTable_019d6dca-4e2f-7ab2-8ab6-67b5604db79e" xlink:to="loc_us-gaap_InvestmentIdentifierAxis_019d6dca-4e2f-7113-831c-1cd0f45a046e" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeAxis_019d8459-66db-750f-8813-e57aa7432eb6" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_RangeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanScheduleOfAssetHeldForInvestmentTable_019d6dca-4e2f-7ab2-8ab6-67b5604db79e" xlink:to="loc_srt_RangeAxis_019d8459-66db-750f-8813-e57aa7432eb6" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeMember_019d8459-66db-750f-8813-e57aa7432eb6_default" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_RangeMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_RangeAxis_019d8459-66db-750f-8813-e57aa7432eb6" xlink:to="loc_srt_RangeMember_019d8459-66db-750f-8813-e57aa7432eb6_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeMember_019d8459-66db-7252-acd6-4663c7e2cb6a" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_RangeMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_RangeAxis_019d8459-66db-750f-8813-e57aa7432eb6" xlink:to="loc_srt_RangeMember_019d8459-66db-7252-acd6-4663c7e2cb6a" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_MinimumMember_019d8459-93d9-76c5-91df-cd7d0060a3ca" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_MinimumMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RangeMember_019d8459-66db-7252-acd6-4663c7e2cb6a" xlink:to="loc_srt_MinimumMember_019d8459-93d9-76c5-91df-cd7d0060a3ca" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_MaximumMember_019d8459-7fbd-795a-a028-360e1f4c364f" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_MaximumMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RangeMember_019d8459-66db-7252-acd6-4663c7e2cb6a" xlink:to="loc_srt_MaximumMember_019d8459-7fbd-795a-a028-360e1f4c364f" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityTaxIdentificationNumber_019d8457-2f4e-7cd3-b48c-d569c6944690" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityTaxIdentificationNumber"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanScheduleOfAssetHeldForInvestmentLineItems_019d6dca-4e2f-7a1b-a3c8-8ea2299592f1" xlink:to="loc_dei_EntityTaxIdentificationNumber_019d8457-2f4e-7cd3-b48c-d569c6944690" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap-ebp_EmployeeBenefitPlanPlanNumber_019d8456-ec94-7dab-9f27-098993d46c05" xlink:href="https://xbrl.fasb.org/us-gaap/2026/ebp/elts/us-gaap-ebp-2026.xsd#us-gaap-ebp_EmployeeBenefitPlanPlanNumber"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanScheduleOfAssetHeldForInvestmentLineItems_019d6dca-4e2f-7a1b-a3c8-8ea2299592f1" xlink:to="loc_us-gaap-ebp_EmployeeBenefitPlanPlanNumber_019d8456-ec94-7dab-9f27-098993d46c05" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap-ebp_EmployeeBenefitPlanAssetHeldForInvestmentInvestmentExcludingPlanInterestInMasterTrustCurrentValue_019d6dca-4e2f-70bf-9a1a-59f665534fd7" xlink:href="https://xbrl.fasb.org/us-gaap/2026/ebp/elts/us-gaap-ebp-2026.xsd#us-gaap-ebp_EmployeeBenefitPlanAssetHeldForInvestmentInvestmentExcludingPlanInterestInMasterTrustCurrentValue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanScheduleOfAssetHeldForInvestmentLineItems_019d6dca-4e2f-7a1b-a3c8-8ea2299592f1" xlink:to="loc_us-gaap-ebp_EmployeeBenefitPlanAssetHeldForInvestmentInvestmentExcludingPlanInterestInMasterTrustCurrentValue_019d6dca-4e2f-70bf-9a1a-59f665534fd7" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap-ebp_EmployeeBenefitPlanAssetHeldForInvestmentParticipantLoanAfterDeemedDistribution_019d6dca-4e2f-76e5-b064-0e15b92c0dbd" xlink:href="https://xbrl.fasb.org/us-gaap/2026/ebp/elts/us-gaap-ebp-2026.xsd#us-gaap-ebp_EmployeeBenefitPlanAssetHeldForInvestmentParticipantLoanAfterDeemedDistribution"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanScheduleOfAssetHeldForInvestmentLineItems_019d6dca-4e2f-7a1b-a3c8-8ea2299592f1" xlink:to="loc_us-gaap-ebp_EmployeeBenefitPlanAssetHeldForInvestmentParticipantLoanAfterDeemedDistribution_019d6dca-4e2f-76e5-b064-0e15b92c0dbd" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap-ebp_EmployeeBenefitPlanAssetHeldForInvestment_019d6dca-4e2f-7037-9f0f-fbaa9589e86a" xlink:href="https://xbrl.fasb.org/us-gaap/2026/ebp/elts/us-gaap-ebp-2026.xsd#us-gaap-ebp_EmployeeBenefitPlanAssetHeldForInvestment"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanScheduleOfAssetHeldForInvestmentLineItems_019d6dca-4e2f-7a1b-a3c8-8ea2299592f1" xlink:to="loc_us-gaap-ebp_EmployeeBenefitPlanAssetHeldForInvestment_019d6dca-4e2f-7037-9f0f-fbaa9589e86a" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap-ebp_EmployeeBenefitPlanParticipantLoanInterestRate_019d8458-ee68-7a04-9c05-bd8bc3077c9a" xlink:href="https://xbrl.fasb.org/us-gaap/2026/ebp/elts/us-gaap-ebp-2026.xsd#us-gaap-ebp_EmployeeBenefitPlanParticipantLoanInterestRate"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanScheduleOfAssetHeldForInvestmentLineItems_019d6dca-4e2f-7a1b-a3c8-8ea2299592f1" xlink:to="loc_us-gaap-ebp_EmployeeBenefitPlanParticipantLoanInterestRate_019d8458-ee68-7a04-9c05-bd8bc3077c9a" xlink:type="arc" order="5"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.crowncork.com/role/ScheduleHLine4iScheduleofAssetsDetails_1" xlink:type="simple" xlink:href="cck-20260618.xsd#ScheduleHLine4iScheduleofAssetsDetails_1"/>
  <link:definitionLink xlink:role="http://www.crowncork.com/role/ScheduleHLine4iScheduleofAssetsDetails_1" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap-ebp_EmployeeBenefitPlanScheduleOfAssetHeldForInvestmentLineItems_019d6dca-4e2f-7a1b-a3c8-8ea2299592f1" xlink:href="https://xbrl.fasb.org/us-gaap/2026/ebp/elts/us-gaap-ebp-2026.xsd#us-gaap-ebp_EmployeeBenefitPlanScheduleOfAssetHeldForInvestmentLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap-ebp_EmployeeBenefitPlanScheduleOfAssetHeldForInvestmentTable_019d6dca-4e2f-7ab2-8ab6-67b5604db79e" xlink:href="https://xbrl.fasb.org/us-gaap/2026/ebp/elts/us-gaap-ebp-2026.xsd#us-gaap-ebp_EmployeeBenefitPlanScheduleOfAssetHeldForInvestmentTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanScheduleOfAssetHeldForInvestmentLineItems_019d6dca-4e2f-7a1b-a3c8-8ea2299592f1" xlink:to="loc_us-gaap-ebp_EmployeeBenefitPlanScheduleOfAssetHeldForInvestmentTable_019d6dca-4e2f-7ab2-8ab6-67b5604db79e" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_LegalEntityAxis_019d6dca-4e2f-7369-a733-55488732c014" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_LegalEntityAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanScheduleOfAssetHeldForInvestmentTable_019d6dca-4e2f-7ab2-8ab6-67b5604db79e" xlink:to="loc_dei_LegalEntityAxis_019d6dca-4e2f-7369-a733-55488732c014" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain_019d6dca-4e2f-7369-a733-55488732c014_default" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_dei_LegalEntityAxis_019d6dca-4e2f-7369-a733-55488732c014" xlink:to="loc_dei_EntityDomain_019d6dca-4e2f-7369-a733-55488732c014_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain_019d6dca-4e2f-7b14-b9a0-f43d1504f2c1" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_dei_LegalEntityAxis_019d6dca-4e2f-7369-a733-55488732c014" xlink:to="loc_dei_EntityDomain_019d6dca-4e2f-7b14-b9a0-f43d1504f2c1" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_cck_EBP105Member_019d6dca-4e2f-77e8-9d4f-0de4c3894a86" xlink:href="cck-20260618.xsd#cck_EBP105Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityDomain_019d6dca-4e2f-7b14-b9a0-f43d1504f2c1" xlink:to="loc_cck_EBP105Member_019d6dca-4e2f-77e8-9d4f-0de4c3894a86" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InvestmentTypeAxis_019d6dca-4e2f-7a84-9a64-cdfe00e857cc" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InvestmentTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanScheduleOfAssetHeldForInvestmentTable_019d6dca-4e2f-7ab2-8ab6-67b5604db79e" xlink:to="loc_us-gaap_InvestmentTypeAxis_019d6dca-4e2f-7a84-9a64-cdfe00e857cc" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InvestmentTypeCategorizationMember_019d6dca-4e2f-7a84-9a64-cdfe00e857cc_default" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InvestmentTypeCategorizationMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_InvestmentTypeAxis_019d6dca-4e2f-7a84-9a64-cdfe00e857cc" xlink:to="loc_us-gaap_InvestmentTypeCategorizationMember_019d6dca-4e2f-7a84-9a64-cdfe00e857cc_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InvestmentTypeCategorizationMember_019d6dca-4e2f-703b-9952-956519e2e09e" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_InvestmentTypeCategorizationMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_InvestmentTypeAxis_019d6dca-4e2f-7a84-9a64-cdfe00e857cc" xlink:to="loc_us-gaap_InvestmentTypeCategorizationMember_019d6dca-4e2f-703b-9952-956519e2e09e" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DefinedBenefitPlanCommonCollectiveTrustMember_019d6dca-4e2f-7cf4-808b-8c04969936f6" xlink:href="https://xbrl.fasb.org/us-gaap/2026/elts/us-gaap-2026.xsd#us-gaap_DefinedBenefitPlanCommonCollectiveTrustMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_InvestmentTypeCategorizationMember_019d6dca-4e2f-703b-9952-956519e2e09e" xlink:to="loc_us-gaap_DefinedBenefitPlanCommonCollectiveTrustMember_019d6dca-4e2f-7cf4-808b-8c04969936f6" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap-ebp_EmployeeBenefitPlanEmployerCommonStockFundMember_019e3c4f-9fc4-754d-a80d-ab6f429a9e5f" xlink:href="https://xbrl.fasb.org/us-gaap/2026/ebp/elts/us-gaap-ebp-2026.xsd#us-gaap-ebp_EmployeeBenefitPlanEmployerCommonStockFundMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_InvestmentTypeCategorizationMember_019d6dca-4e2f-703b-9952-956519e2e09e" xlink:to="loc_us-gaap-ebp_EmployeeBenefitPlanEmployerCommonStockFundMember_019e3c4f-9fc4-754d-a80d-ab6f429a9e5f" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeAxis_019d8459-66db-750f-8813-e57aa7432eb6" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_RangeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanScheduleOfAssetHeldForInvestmentTable_019d6dca-4e2f-7ab2-8ab6-67b5604db79e" xlink:to="loc_srt_RangeAxis_019d8459-66db-750f-8813-e57aa7432eb6" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeMember_019d8459-66db-750f-8813-e57aa7432eb6_default" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_RangeMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_RangeAxis_019d8459-66db-750f-8813-e57aa7432eb6" xlink:to="loc_srt_RangeMember_019d8459-66db-750f-8813-e57aa7432eb6_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeMember_019d8459-66db-7252-acd6-4663c7e2cb6a" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_RangeMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_RangeAxis_019d8459-66db-750f-8813-e57aa7432eb6" xlink:to="loc_srt_RangeMember_019d8459-66db-7252-acd6-4663c7e2cb6a" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_MinimumMember_019d8459-93d9-76c5-91df-cd7d0060a3ca" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_MinimumMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RangeMember_019d8459-66db-7252-acd6-4663c7e2cb6a" xlink:to="loc_srt_MinimumMember_019d8459-93d9-76c5-91df-cd7d0060a3ca" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_MaximumMember_019d8459-7fbd-795a-a028-360e1f4c364f" xlink:href="https://xbrl.fasb.org/srt/2026/elts/srt-2026.xsd#srt_MaximumMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RangeMember_019d8459-66db-7252-acd6-4663c7e2cb6a" xlink:to="loc_srt_MaximumMember_019d8459-7fbd-795a-a028-360e1f4c364f" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityTaxIdentificationNumber_019d8457-2f4e-7cd3-b48c-d569c6944690" xlink:href="https://xbrl.sec.gov/dei/2026/dei-2026.xsd#dei_EntityTaxIdentificationNumber"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanScheduleOfAssetHeldForInvestmentLineItems_019d6dca-4e2f-7a1b-a3c8-8ea2299592f1" xlink:to="loc_dei_EntityTaxIdentificationNumber_019d8457-2f4e-7cd3-b48c-d569c6944690" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap-ebp_EmployeeBenefitPlanPlanNumber_019d8456-ec94-7dab-9f27-098993d46c05" xlink:href="https://xbrl.fasb.org/us-gaap/2026/ebp/elts/us-gaap-ebp-2026.xsd#us-gaap-ebp_EmployeeBenefitPlanPlanNumber"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanScheduleOfAssetHeldForInvestmentLineItems_019d6dca-4e2f-7a1b-a3c8-8ea2299592f1" xlink:to="loc_us-gaap-ebp_EmployeeBenefitPlanPlanNumber_019d8456-ec94-7dab-9f27-098993d46c05" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap-ebp_EmployeeBenefitPlanAssetHeldForInvestmentInvestmentExcludingPlanInterestInMasterTrustCurrentValue_019d6dca-4e2f-70bf-9a1a-59f665534fd7" xlink:href="https://xbrl.fasb.org/us-gaap/2026/ebp/elts/us-gaap-ebp-2026.xsd#us-gaap-ebp_EmployeeBenefitPlanAssetHeldForInvestmentInvestmentExcludingPlanInterestInMasterTrustCurrentValue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanScheduleOfAssetHeldForInvestmentLineItems_019d6dca-4e2f-7a1b-a3c8-8ea2299592f1" xlink:to="loc_us-gaap-ebp_EmployeeBenefitPlanAssetHeldForInvestmentInvestmentExcludingPlanInterestInMasterTrustCurrentValue_019d6dca-4e2f-70bf-9a1a-59f665534fd7" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap-ebp_EmployeeBenefitPlanAssetHeldForInvestmentParticipantLoanAfterDeemedDistribution_019d6dca-4e2f-76e5-b064-0e15b92c0dbd" xlink:href="https://xbrl.fasb.org/us-gaap/2026/ebp/elts/us-gaap-ebp-2026.xsd#us-gaap-ebp_EmployeeBenefitPlanAssetHeldForInvestmentParticipantLoanAfterDeemedDistribution"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanScheduleOfAssetHeldForInvestmentLineItems_019d6dca-4e2f-7a1b-a3c8-8ea2299592f1" xlink:to="loc_us-gaap-ebp_EmployeeBenefitPlanAssetHeldForInvestmentParticipantLoanAfterDeemedDistribution_019d6dca-4e2f-76e5-b064-0e15b92c0dbd" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap-ebp_EmployeeBenefitPlanAssetHeldForInvestment_019d6dca-4e2f-7037-9f0f-fbaa9589e86a" xlink:href="https://xbrl.fasb.org/us-gaap/2026/ebp/elts/us-gaap-ebp-2026.xsd#us-gaap-ebp_EmployeeBenefitPlanAssetHeldForInvestment"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanScheduleOfAssetHeldForInvestmentLineItems_019d6dca-4e2f-7a1b-a3c8-8ea2299592f1" xlink:to="loc_us-gaap-ebp_EmployeeBenefitPlanAssetHeldForInvestment_019d6dca-4e2f-7037-9f0f-fbaa9589e86a" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap-ebp_EmployeeBenefitPlanParticipantLoanInterestRate_019d8458-ee68-7a04-9c05-bd8bc3077c9a" xlink:href="https://xbrl.fasb.org/us-gaap/2026/ebp/elts/us-gaap-ebp-2026.xsd#us-gaap-ebp_EmployeeBenefitPlanParticipantLoanInterestRate"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap-ebp_EmployeeBenefitPlanScheduleOfAssetHeldForInvestmentLineItems_019d6dca-4e2f-7a1b-a3c8-8ea2299592f1" xlink:to="loc_us-gaap-ebp_EmployeeBenefitPlanParticipantLoanInterestRate_019d8458-ee68-7a04-9c05-bd8bc3077c9a" xlink:type="arc" order="5"/>
  </link:definitionLink>
</link:linkbase>
