<XBRL>
<?xml version="1.0" encoding="US-ASCII"?>
<!--XBRL Document Created with Wdesk from Workiva-->
<!-- -->
<xsd:schema attributeFormDefault="unqualified" elementFormDefault="qualified" targetNamespace="http://www.cinfin.com/20170331" xmlns:cinf="http://www.cinfin.com/20170331" xmlns:link="http://www.xbrl.org/2003/linkbase" xmlns:nonnum="http://www.xbrl.org/dtr/type/non-numeric" xmlns:num="http://www.xbrl.org/dtr/type/numeric" xmlns:xbrldt="http://xbrl.org/2005/xbrldt" xmlns:xbrli="http://www.xbrl.org/2003/instance" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsd="http://www.w3.org/2001/XMLSchema">
  <xsd:import namespace="http://fasb.org/us-gaap/2016-01-31" schemaLocation="http://xbrl.fasb.org/us-gaap/2016/elts/us-gaap-2016-01-31.xsd" />
  <xsd:import namespace="http://fasb.org/us-roles/2016-01-31" schemaLocation="http://xbrl.fasb.org/us-gaap/2016/elts/us-roles-2016-01-31.xsd" />
  <xsd:import namespace="http://fasb.org/us-types/2016-01-31" schemaLocation="http://xbrl.fasb.org/us-gaap/2016/elts/us-types-2016-01-31.xsd" />
  <xsd:import namespace="http://www.xbrl.org/2003/instance" schemaLocation="http://www.xbrl.org/2003/xbrl-instance-2003-12-31.xsd" />
  <xsd:import namespace="http://www.xbrl.org/2003/linkbase" schemaLocation="http://www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd" />
  <xsd:import namespace="http://www.xbrl.org/2009/arcrole/fact-explanatoryFact" schemaLocation="http://www.xbrl.org/lrr/arcrole/factExplanatory-2009-12-16.xsd" />
  <xsd:import namespace="http://www.xbrl.org/2009/role/negated" schemaLocation="http://www.xbrl.org/lrr/role/negated-2009-12-16.xsd" />
  <xsd:import namespace="http://www.xbrl.org/2009/role/net" schemaLocation="http://www.xbrl.org/lrr/role/net-2009-12-16.xsd" />
  <xsd:import namespace="http://www.xbrl.org/dtr/type/non-numeric" schemaLocation="http://www.xbrl.org/dtr/type/nonNumeric-2009-12-16.xsd" />
  <xsd:import namespace="http://www.xbrl.org/dtr/type/numeric" schemaLocation="http://www.xbrl.org/dtr/type/numeric-2009-12-16.xsd" />
  <xsd:import namespace="http://xbrl.org/2005/xbrldt" schemaLocation="http://www.xbrl.org/2005/xbrldt-2005.xsd" />
  <xsd:import namespace="http://xbrl.sec.gov/country/2016-01-31" schemaLocation="http://xbrl.sec.gov/country/2016/country-2016-01-31.xsd" />
  <xsd:import namespace="http://xbrl.sec.gov/currency/2016-01-31" schemaLocation="http://xbrl.sec.gov/currency/2016/currency-2016-01-31.xsd" />
  <xsd:import namespace="http://xbrl.sec.gov/dei/2014-01-31" schemaLocation="http://xbrl.sec.gov/dei/2014/dei-2014-01-31.xsd" />
  <xsd:import namespace="http://xbrl.sec.gov/exch/2016-01-31" schemaLocation="http://xbrl.sec.gov/exch/2016/exch-2016-01-31.xsd" />
  <xsd:import namespace="http://xbrl.sec.gov/invest/2013-01-31" schemaLocation="http://xbrl.sec.gov/invest/2013/invest-2013-01-31.xsd" />
  <xsd:import namespace="http://xbrl.sec.gov/naics/2011-01-31" schemaLocation="http://xbrl.sec.gov/naics/2011/naics-2011-01-31.xsd" />
  <xsd:import namespace="http://xbrl.sec.gov/sic/2011-01-31" schemaLocation="http://xbrl.sec.gov/sic/2011/sic-2011-01-31.xsd" />
  <xsd:import namespace="http://xbrl.sec.gov/stpr/2011-01-31" schemaLocation="http://xbrl.sec.gov/stpr/2011/stpr-2011-01-31.xsd" />
  <xsd:annotation>
    <xsd:appinfo>
      <link:linkbaseRef xlink:arcrole="http://www.w3.org/1999/xlink/properties/linkbase" xlink:href="cinf-20170331_cal.xml" xlink:role="http://www.xbrl.org/2003/role/calculationLinkbaseRef" xlink:type="simple" />
      <link:linkbaseRef xlink:arcrole="http://www.w3.org/1999/xlink/properties/linkbase" xlink:href="cinf-20170331_def.xml" xlink:role="http://www.xbrl.org/2003/role/definitionLinkbaseRef" xlink:type="simple" />
      <link:linkbaseRef xlink:arcrole="http://www.w3.org/1999/xlink/properties/linkbase" xlink:href="cinf-20170331_lab.xml" xlink:role="http://www.xbrl.org/2003/role/labelLinkbaseRef" xlink:type="simple" />
      <link:linkbaseRef xlink:arcrole="http://www.w3.org/1999/xlink/properties/linkbase" xlink:href="cinf-20170331_pre.xml" xlink:role="http://www.xbrl.org/2003/role/presentationLinkbaseRef" xlink:type="simple" />
      <link:roleType id="AccountingPolicies" roleURI="http://www.cinfin.com/role/AccountingPolicies">
        <link:definition>2101100 - Disclosure - Accounting Policies</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="AccountingPoliciesDetails" roleURI="http://www.cinfin.com/role/AccountingPoliciesDetails">
        <link:definition>2401402 - Disclosure - Accounting Policies (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="AccountingPoliciesPendingAccountingUpdatesPolicies" roleURI="http://www.cinfin.com/role/AccountingPoliciesPendingAccountingUpdatesPolicies">
        <link:definition>2201201 - Disclosure - Accounting Policies Pending Accounting Updates (Policies)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="AccumulatedOtherComprehensiveIncome" roleURI="http://www.cinfin.com/role/AccumulatedOtherComprehensiveIncome">
        <link:definition>2107100 - Disclosure - Accumulated Other Comprehensive Income</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="AccumulatedOtherComprehensiveIncomeDetails" roleURI="http://www.cinfin.com/role/AccumulatedOtherComprehensiveIncomeDetails">
        <link:definition>2407402 - Disclosure - Accumulated Other Comprehensive Income (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="AccumulatedOtherComprehensiveIncomeTables" roleURI="http://www.cinfin.com/role/AccumulatedOtherComprehensiveIncomeTables">
        <link:definition>2307301 - Disclosure - Accumulated Other Comprehensive Income (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="CommitmentsAndContingentLiabilities" roleURI="http://www.cinfin.com/role/CommitmentsAndContingentLiabilities">
        <link:definition>2113100 - Disclosure - Commitments and Contingent Liabilities</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="CommitmentsAndContingentLiabilitiesNarrativeDetails" roleURI="http://www.cinfin.com/role/CommitmentsAndContingentLiabilitiesNarrativeDetails">
        <link:definition>2413401 - Disclosure - Commitments and Contingent Liabilities (Narrative) (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="CondensedConsolidatedBalanceSheets" roleURI="http://www.cinfin.com/role/CondensedConsolidatedBalanceSheets">
        <link:definition>1001000 - Statement - Condensed Consolidated Balance Sheets</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="CondensedConsolidatedBalanceSheetsParenthetical" roleURI="http://www.cinfin.com/role/CondensedConsolidatedBalanceSheetsParenthetical">
        <link:definition>1001501 - Statement - Condensed Consolidated Balance Sheets (Parenthetical)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="CondensedConsolidatedStatementsOfCashFlows" roleURI="http://www.cinfin.com/role/CondensedConsolidatedStatementsOfCashFlows">
        <link:definition>1005000 - Statement - Condensed Consolidated Statements of Cash Flows</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="CondensedConsolidatedStatementsOfComprehensiveIncome" roleURI="http://www.cinfin.com/role/CondensedConsolidatedStatementsOfComprehensiveIncome">
        <link:definition>1003000 - Statement - Condensed Consolidated Statements of Comprehensive Income</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="CondensedConsolidatedStatementsOfComprehensiveIncomeParenthetical" roleURI="http://www.cinfin.com/role/CondensedConsolidatedStatementsOfComprehensiveIncomeParenthetical">
        <link:definition>1003001 - Statement - Condensed Consolidated Statements of Comprehensive Income (Parenthetical)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="CondensedConsolidatedStatementsOfIncome" roleURI="http://www.cinfin.com/role/CondensedConsolidatedStatementsOfIncome">
        <link:definition>1002000 - Statement - Condensed Consolidated Statements of Income</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="CondensedConsolidatedStatementsOfShareholdersEquity" roleURI="http://www.cinfin.com/role/CondensedConsolidatedStatementsOfShareholdersEquity">
        <link:definition>1004000 - Statement - Condensed Consolidated Statements of Shareholders' Equity</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="DeferredAcquisitionCosts" roleURI="http://www.cinfin.com/role/DeferredAcquisitionCosts">
        <link:definition>2106100 - Disclosure - Deferred Acquisition Costs</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="DeferredAcquisitionCostsDeferredPolicyAcquisitionCostsAndAssetReconciliationDetail" roleURI="http://www.cinfin.com/role/DeferredAcquisitionCostsDeferredPolicyAcquisitionCostsAndAssetReconciliationDetail">
        <link:definition>2406402 - Disclosure - Deferred Acquisition Costs - Deferred Policy Acquisition Costs and Asset Reconciliation (Detail)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="DeferredAcquisitionCostsTables" roleURI="http://www.cinfin.com/role/DeferredAcquisitionCostsTables">
        <link:definition>2306301 - Disclosure - Deferred Acquisition Costs  (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="DocumentAndEntityInformation" roleURI="http://www.cinfin.com/role/DocumentAndEntityInformation">
        <link:definition>0001000 - Document - Document and Entity Information</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="EmployeeRetirementBenefits" roleURI="http://www.cinfin.com/role/EmployeeRetirementBenefits">
        <link:definition>2112100 - Disclosure - Employee Retirement Benefits</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="EmployeeRetirementBenefitsComponentsOfNetPeriodicCostsForQualifiedAndSupplementalPensionPlansDetail" roleURI="http://www.cinfin.com/role/EmployeeRetirementBenefitsComponentsOfNetPeriodicCostsForQualifiedAndSupplementalPensionPlansDetail">
        <link:definition>2412402 - Disclosure - Employee Retirement Benefits - Components of Net Periodic Costs for Qualified and Supplemental Pension Plans (Detail)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="EmployeeRetirementBenefitsDefinedContributionPlanDetail" roleURI="http://www.cinfin.com/role/EmployeeRetirementBenefitsDefinedContributionPlanDetail">
        <link:definition>2412403 - Disclosure - Employee Retirement Benefits - Defined Contribution Plan (Detail)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="EmployeeRetirementBenefitsTables" roleURI="http://www.cinfin.com/role/EmployeeRetirementBenefitsTables">
        <link:definition>2312301 - Disclosure - Employee Retirement Benefits (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="FairValueMeasurements" roleURI="http://www.cinfin.com/role/FairValueMeasurements">
        <link:definition>2103100 - Disclosure - Fair Value Measurements</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="FairValueMeasurementsAdditionalInformationDetail" roleURI="http://www.cinfin.com/role/FairValueMeasurementsAdditionalInformationDetail">
        <link:definition>2403408 - Disclosure - Fair Value Measurements - Additional Information (Detail)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="FairValueMeasurementsChangeInLevel3AssetsDetail" roleURI="http://www.cinfin.com/role/FairValueMeasurementsChangeInLevel3AssetsDetail">
        <link:definition>2403403 - Disclosure - Fair Value Measurements - Change in Level 3 Assets (Detail)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="FairValueMeasurementsFairValueHierarchyForAssetsMeasuredAtFairValueOnRecurringBasisDetail" roleURI="http://www.cinfin.com/role/FairValueMeasurementsFairValueHierarchyForAssetsMeasuredAtFairValueOnRecurringBasisDetail">
        <link:definition>2403402 - Disclosure - Fair Value Measurements - Fair Value Hierarchy for Assets Measured at Fair Value on Recurring Basis (Detail)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="FairValueMeasurementsFairValueOfLifePolicyLoansDetail" roleURI="http://www.cinfin.com/role/FairValueMeasurementsFairValueOfLifePolicyLoansDetail">
        <link:definition>2403406 - Disclosure - Fair Value Measurements - Fair Value of Life Policy Loans (Detail)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="FairValueMeasurementsFairValuesOfDeferredAnnuitiesStructuredSettlementsAndOtherItemsDetail" roleURI="http://www.cinfin.com/role/FairValueMeasurementsFairValuesOfDeferredAnnuitiesStructuredSettlementsAndOtherItemsDetail">
        <link:definition>2403407 - Disclosure - Fair Value Measurements - Fair Values of Deferred Annuities, Structured Settlements and Other Items (Detail)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="FairValueMeasurementsFairValuesOfNotePayableAndLongTermDebtDetail" roleURI="http://www.cinfin.com/role/FairValueMeasurementsFairValuesOfNotePayableAndLongTermDebtDetail">
        <link:definition>2403405 - Disclosure - Fair Value Measurements - Fair Values of Note Payable and Long-Term Debt (Detail)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="FairValueMeasurementsSummaryOfBookValueAndPrincipalAmountsOfLongTermDebtDetail" roleURI="http://www.cinfin.com/role/FairValueMeasurementsSummaryOfBookValueAndPrincipalAmountsOfLongTermDebtDetail">
        <link:definition>2403404 - Disclosure - Fair Value Measurements - Summary of Book Value and Principal Amounts of Long-Term Debt (Detail)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="FairValueMeasurementsTables" roleURI="http://www.cinfin.com/role/FairValueMeasurementsTables">
        <link:definition>2303301 - Disclosure - Fair Value Measurements (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="IncomeTaxes" roleURI="http://www.cinfin.com/role/IncomeTaxes">
        <link:definition>2110100 - Disclosure - Income Taxes</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="IncomeTaxesDifferencesBetween35PercentStatutoryIncomeTaxRateAndEffectiveIncomeTaxRateDetail" roleURI="http://www.cinfin.com/role/IncomeTaxesDifferencesBetween35PercentStatutoryIncomeTaxRateAndEffectiveIncomeTaxRateDetail">
        <link:definition>2410402 - Disclosure - Income Taxes - Differences Between 35 Percent Statutory Income Tax Rate and Effective Income Tax Rate (Detail)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="IncomeTaxesNarrativeDetails" roleURI="http://www.cinfin.com/role/IncomeTaxesNarrativeDetails">
        <link:definition>2410403 - Disclosure - Income Taxes (Narrative) (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="IncomeTaxesTables" roleURI="http://www.cinfin.com/role/IncomeTaxesTables">
        <link:definition>2310301 - Disclosure - Income Taxes (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="Investments" roleURI="http://www.cinfin.com/role/Investments">
        <link:definition>2102100 - Disclosure - Investments</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="InvestmentsAdditionalInformationDetail" roleURI="http://www.cinfin.com/role/InvestmentsAdditionalInformationDetail">
        <link:definition>2402406 - Disclosure - Investments - Additional Information (Detail)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="InvestmentsAnalysisOfCostOrAmortizedCostGrossUnrealizedGainsAndLossesAndFairValueForInvestmentsDetail" roleURI="http://www.cinfin.com/role/InvestmentsAnalysisOfCostOrAmortizedCostGrossUnrealizedGainsAndLossesAndFairValueForInvestmentsDetail">
        <link:definition>2402402 - Disclosure - Investments - Analysis of Cost or Amortized Cost, Gross Unrealized Gains and Losses and Fair Value for Investments (Detail)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="InvestmentsFairValuesAndUnrealizedLossesByInvestmentCategoryAndByDurationOfSecuritiesContinuousUnrealizedLossPositionDetail" roleURI="http://www.cinfin.com/role/InvestmentsFairValuesAndUnrealizedLossesByInvestmentCategoryAndByDurationOfSecuritiesContinuousUnrealizedLossPositionDetail">
        <link:definition>2402403 - Disclosure - Investments - Fair Values and Unrealized Losses by Investment Category and by Duration of Securities' Continuous Unrealized Loss Position (Detail)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="InvestmentsRealizedInvestmentGainsAndLossesAndChangeInUnrealizedInvestmentGainsAndLossesAndOtherItemsDetail" roleURI="http://www.cinfin.com/role/InvestmentsRealizedInvestmentGainsAndLossesAndChangeInUnrealizedInvestmentGainsAndLossesAndOtherItemsDetail">
        <link:definition>2402405 - Disclosure - Investments - Realized Investment Gains and Losses and Change in Unrealized Investment Gains and Losses and Other Items (Detail)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="InvestmentsScheduleOfContractualMaturitiesOfInvestmentsDetails" roleURI="http://www.cinfin.com/role/InvestmentsScheduleOfContractualMaturitiesOfInvestmentsDetails">
        <link:definition>2402404 - Disclosure - Investments - Schedule of Contractual Maturities of Investments (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="InvestmentsTables" roleURI="http://www.cinfin.com/role/InvestmentsTables">
        <link:definition>2302301 - Disclosure - Investments (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="LifePolicyAndInvestmentContractReserves" roleURI="http://www.cinfin.com/role/LifePolicyAndInvestmentContractReserves">
        <link:definition>2105100 - Disclosure - Life Policy and Investment Contract Reserves</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="LifePolicyAndInvestmentContractReservesTables" roleURI="http://www.cinfin.com/role/LifePolicyAndInvestmentContractReservesTables">
        <link:definition>2305301 - Disclosure - Life Policy and Investment Contract Reserves (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="NetIncomePerCommonShare" roleURI="http://www.cinfin.com/role/NetIncomePerCommonShare">
        <link:definition>2111100 - Disclosure - Net Income Per Common Share</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="NetIncomePerCommonShareCalculationsForBasicAndDilutedEarningsPerShareDetail" roleURI="http://www.cinfin.com/role/NetIncomePerCommonShareCalculationsForBasicAndDilutedEarningsPerShareDetail">
        <link:definition>2411402 - Disclosure - Net Income Per Common Share - Calculations for Basic and Diluted Earnings Per Share (Detail)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="NetIncomePerCommonShareTables" roleURI="http://www.cinfin.com/role/NetIncomePerCommonShareTables">
        <link:definition>2311301 - Disclosure - Net Income Per Common Share (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="PropertyCasualtyLossAndLossExpenses" roleURI="http://www.cinfin.com/role/PropertyCasualtyLossAndLossExpenses">
        <link:definition>2104100 - Disclosure - Property Casualty Loss and Loss Expenses</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="PropertyCasualtyLossAndLossExpensesAdditionalInformationDetail" roleURI="http://www.cinfin.com/role/PropertyCasualtyLossAndLossExpensesAdditionalInformationDetail">
        <link:definition>2404403 - Disclosure - Property Casualty Loss and Loss Expenses  - Additional Information (Detail)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="PropertyCasualtyLossAndLossExpensesConsolidatedPropertyCasualtyLossAndLossExpenseReservesDetail" roleURI="http://www.cinfin.com/role/PropertyCasualtyLossAndLossExpensesConsolidatedPropertyCasualtyLossAndLossExpenseReservesDetail">
        <link:definition>2404402 - Disclosure - Property Casualty Loss and Loss Expenses - Consolidated Property Casualty Loss and Loss Expense Reserves (Detail)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="PropertyCasualtyLossAndLossExpensesTables" roleURI="http://www.cinfin.com/role/PropertyCasualtyLossAndLossExpensesTables">
        <link:definition>2304301 - Disclosure - Property Casualty Loss and Loss Expenses (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="Reinsurance" roleURI="http://www.cinfin.com/role/Reinsurance">
        <link:definition>2108100 - Disclosure - Reinsurance</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="ReinsuranceEarnedConsolidatedPropertyCasualtyInsurancePremiumsOnAssumedAndCededBusinessDetail" roleURI="http://www.cinfin.com/role/ReinsuranceEarnedConsolidatedPropertyCasualtyInsurancePremiumsOnAssumedAndCededBusinessDetail">
        <link:definition>2408403 - Disclosure - Reinsurance - Earned Consolidated Property Casualty Insurance Premiums on Assumed and Ceded Business (Detail)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="ReinsuranceEarnedLifeInsurancePremiumsOnCededBusinessDetail" roleURI="http://www.cinfin.com/role/ReinsuranceEarnedLifeInsurancePremiumsOnCededBusinessDetail">
        <link:definition>2408405 - Disclosure - Reinsurance - Earned Life Insurance Premiums on Ceded Business (Detail)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="ReinsuranceIncurredConsolidatedPropertyCasualtyInsuranceLossAndLossExpensesOnAssumedAndCededBusinessDetail" roleURI="http://www.cinfin.com/role/ReinsuranceIncurredConsolidatedPropertyCasualtyInsuranceLossAndLossExpensesOnAssumedAndCededBusinessDetail">
        <link:definition>2408404 - Disclosure - Reinsurance - Incurred Consolidated Property Casualty Insurance Loss and Loss Expenses on Assumed and Ceded Business (Detail)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="ReinsuranceLifeInsuranceContractHoldersBenefitsIncurredOnCededBusinessDetail" roleURI="http://www.cinfin.com/role/ReinsuranceLifeInsuranceContractHoldersBenefitsIncurredOnCededBusinessDetail">
        <link:definition>2408406 - Disclosure - Reinsurance - Life Insurance Contract Holders' Benefits Incurred on Ceded Business (Detail)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="ReinsuranceTables" roleURI="http://www.cinfin.com/role/ReinsuranceTables">
        <link:definition>2308301 - Disclosure - Reinsurance (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="ReinsuranceWrittenConsolidatedPropertyCasualtyInsurancePremiumOnAssumedAndCededBusinessDetails" roleURI="http://www.cinfin.com/role/ReinsuranceWrittenConsolidatedPropertyCasualtyInsurancePremiumOnAssumedAndCededBusinessDetails">
        <link:definition>2408402 - Disclosure - Reinsurance - Written Consolidated Property Casualty Insurance Premium on Assumed and Ceded Business (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="ReservesInAdditionToAccountBalanceBasedOnExpectedNoLapseGuaranteeBenefitsAndExpectedPolicyAssessmentsDetail" roleURI="http://www.cinfin.com/role/ReservesInAdditionToAccountBalanceBasedOnExpectedNoLapseGuaranteeBenefitsAndExpectedPolicyAssessmentsDetail">
        <link:definition>2405402 - Disclosure - Reserves in Addition to Account Balance, Based on Expected No-Lapse Guarantee Benefits and Expected Policy Assessments (Detail)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="SegmentInformation" roleURI="http://www.cinfin.com/role/SegmentInformation">
        <link:definition>2114100 - Disclosure - Segment Information</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="SegmentInformationDetail" roleURI="http://www.cinfin.com/role/SegmentInformationDetail">
        <link:definition>2414402 - Disclosure - Segment Information (Detail)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="SegmentInformationNarrativeDetails" roleURI="http://www.cinfin.com/role/SegmentInformationNarrativeDetails">
        <link:definition>2414403 - Disclosure - Segment Information - Narrative (Details)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
      <link:roleType id="SegmentInformationTables" roleURI="http://www.cinfin.com/role/SegmentInformationTables">
        <link:definition>2314301 - Disclosure - Segment Information (Tables)</link:definition>
        <link:usedOn>link:presentationLink</link:usedOn>
        <link:usedOn>link:calculationLink</link:usedOn>
        <link:usedOn>link:definitionLink</link:usedOn>
      </link:roleType>
    </xsd:appinfo>
  </xsd:annotation>
  <xsd:element abstract="true" id="cinf_AccountingStandardsUpdate201609ExcessTaxBenefitComponentMember" name="AccountingStandardsUpdate201609ExcessTaxBenefitComponentMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="cinf_AccumulatedNetUnrealizedGainLossOnDeferredCostsReservesAndOtherMember" name="AccumulatedNetUnrealizedGainLossOnDeferredCostsReservesAndOtherMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="cinf_AccumulatedOtherComprehensiveIncomeAbstract" name="AccumulatedOtherComprehensiveIncomeAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element id="cinf_AccumulatedOtherComprehensiveIncomeLossTax" name="AccumulatedOtherComprehensiveIncomeLossTax" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element abstract="true" id="cinf_AccumulatedOtherComprehensiveIncomeLossTaxAbstract" name="AccumulatedOtherComprehensiveIncomeLossTaxAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element id="cinf_AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsAverage" name="AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsAverage" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="instant" />
  <xsd:element id="cinf_AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsAverage" name="AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsAverage" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="instant" />
  <xsd:element id="cinf_AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsAverage" name="AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsAverage" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="instant" />
  <xsd:element id="cinf_AvailableForSaleSecuritiesDebtMaturitiesAverage" name="AvailableForSaleSecuritiesDebtMaturitiesAverage" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="instant" />
  <xsd:element id="cinf_AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearAverage" name="AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearAverage" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="instant" />
  <xsd:element id="cinf_AvailableForSaleSecuritiesEquitySecuritiesCost" name="AvailableForSaleSecuritiesEquitySecuritiesCost" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element id="cinf_AvailableforsaleSecuritiesContinuousUnrealizedLossPosition12MonthsorLongerAggregateLoss3" name="AvailableforsaleSecuritiesContinuousUnrealizedLossPosition12MonthsorLongerAggregateLoss3" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element id="cinf_AvailableforsaleSecuritiesContinuousUnrealizedLossPositionAggregateLoss3" name="AvailableforsaleSecuritiesContinuousUnrealizedLossPositionAggregateLoss3" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element id="cinf_AvailableforsaleSecuritiesContinuousUnrealizedLossPositionLessThan12MonthsAggregateLoss3" name="AvailableforsaleSecuritiesContinuousUnrealizedLossPositionLessThan12MonthsAggregateLoss3" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element abstract="true" id="cinf_AvailableforsaleSecuritiesDebtMaturitiesAveragePercentAbstract" name="AvailableforsaleSecuritiesDebtMaturitiesAveragePercentAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element id="cinf_AvailableforsaleSecuritiesGrossUnrealizedGain1" name="AvailableforsaleSecuritiesGrossUnrealizedGain1" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element id="cinf_AvailableforsaleSecuritiesGrossUnrealizedLoss2" name="AvailableforsaleSecuritiesGrossUnrealizedLoss2" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element abstract="true" id="cinf_CatastropheDevelopmentMember" name="CatastropheDevelopmentMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="cinf_ChangeInAccumulatedOtherComprehensiveIncomeRollForward" name="ChangeInAccumulatedOtherComprehensiveIncomeRollForward" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="cinf_CommercialAutoSegmentMember" name="CommercialAutoSegmentMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="cinf_CommercialCasualtySegmentMember" name="CommercialCasualtySegmentMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="cinf_CommercialPropertySegmentMember" name="CommercialPropertySegmentMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="cinf_DebtInstrumentIssuanceYear" name="DebtInstrumentIssuanceYear" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="cinf_DeferredAnnuitiesAndStructuredSettlementsMember" name="DeferredAnnuitiesAndStructuredSettlementsMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="cinf_DeferredAnnuitiesMember" name="DeferredAnnuitiesMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="cinf_DeferredAnnuitiesStructuredSettlementsAndOtherMember" name="DeferredAnnuitiesStructuredSettlementsAndOtherMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="cinf_DocumentDocumentandEntityInformationAbstract" name="DocumentDocumentandEntityInformationAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element id="cinf_EffectiveIncomeTaxRateReconciliationSharebasedCompensationExcessTaxBenefitAmount" name="EffectiveIncomeTaxRateReconciliationSharebasedCompensationExcessTaxBenefitAmount" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element id="cinf_EffectiveIncomeTaxRateReconciliationSharebasedCompensationExcessTaxBenefitPercent" name="EffectiveIncomeTaxRateReconciliationSharebasedCompensationExcessTaxBenefitPercent" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="cinf_ExcessandSurplusLinesInsuranceMember" name="ExcessandSurplusLinesInsuranceMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="cinf_FairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisTable" name="FairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisTable" nillable="true" substitutionGroup="xbrldt:hypercubeItem" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="cinf_FairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationByMajorTypeAxis" name="FairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationByMajorTypeAxis" nillable="true" substitutionGroup="xbrldt:dimensionItem" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="cinf_FairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationByMajorTypesDomain" name="FairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationByMajorTypesDomain" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="cinf_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetsTotalGainsLossesRealizedAndUnrealizedAbstract" name="FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetsTotalGainsLossesRealizedAndUnrealizedAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="cinf_FixedMaturitiesAndEquitySecuritiesMember" name="FixedMaturitiesAndEquitySecuritiesMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="cinf_FixedMaturityInvestmentsPercentageOfAmortizedCosts" name="FixedMaturityInvestmentsPercentageOfAmortizedCosts" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="cinf_HomeOwnerSegmentMember" name="HomeOwnerSegmentMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="cinf_HomeownerMember" name="HomeownerMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="cinf_IncreaseDecreaseInOtherComprehensiveIncomeLossBeforeTax" name="IncreaseDecreaseInOtherComprehensiveIncomeLossBeforeTax" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element id="cinf_IncreaseDecreaseInOtherComprehensiveIncomeLossNetOfTax" name="IncreaseDecreaseInOtherComprehensiveIncomeLossNetOfTax" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element id="cinf_IncreaseDecreaseInOtherComprehensiveIncomeLossTax" name="IncreaseDecreaseInOtherComprehensiveIncomeLossTax" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="cinf_IndividualOrdinaryLifeInsuranceMember" name="IndividualOrdinaryLifeInsuranceMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="cinf_InvestmentIncomeOtherLongTermInvestments" name="InvestmentIncomeOtherLongTermInvestments" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="cinf_InvestmentcontractreservesMember" name="InvestmentcontractreservesMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="cinf_InvestmentsUnrealizedLossPositionLineItems" name="InvestmentsUnrealizedLossPositionLineItems" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="cinf_InvestmentsUnrealizedLossPositionTable" name="InvestmentsUnrealizedLossPositionTable" nillable="true" substitutionGroup="xbrldt:hypercubeItem" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element id="cinf_LargestSingleCommonStockHolding" name="LargestSingleCommonStockHolding" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element abstract="true" id="cinf_LargestUnrealizedInvestmentGainsinCommonStockPortfolioMember" name="LargestUnrealizedInvestmentGainsinCommonStockPortfolioMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="cinf_Largestequityholdingstototalequityportfolio" name="Largestequityholdingstototalequityportfolio" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="instant" />
  <xsd:element id="cinf_Largestequityholdingstototalportfolio" name="Largestequityholdingstototalportfolio" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="instant" />
  <xsd:element id="cinf_LiabilityForFuturePolicyBenefitsLifeTextBlock" name="LiabilityForFuturePolicyBenefitsLifeTextBlock" nillable="true" substitutionGroup="xbrli:item" type="nonnum:textBlockItemType" xbrli:periodType="duration" />
  <xsd:element id="cinf_LifeInsuranceContractHoldersBenefitsIncurredOnCededBusinessTextBlock" name="LifeInsuranceContractHoldersBenefitsIncurredOnCededBusinessTextBlock" nillable="true" substitutionGroup="xbrli:item" type="nonnum:textBlockItemType" xbrli:periodType="duration" />
  <xsd:element id="cinf_LifeInsurancePremiumsEarnedOnAssumedAndCededBusinessTableTextBlock" name="LifeInsurancePremiumsEarnedOnAssumedAndCededBusinessTableTextBlock" nillable="true" substitutionGroup="xbrli:item" type="nonnum:textBlockItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="cinf_LifePolicyReservesMember" name="LifePolicyReservesMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="cinf_LifeandHealthLossReservesMember" name="LifeandHealthLossReservesMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="cinf_NumberOfIndustriesOperatingIn" name="NumberOfIndustriesOperatingIn" nillable="true" substitutionGroup="xbrli:item" type="xbrli:integerItemType" xbrli:periodType="duration" />
  <xsd:element id="cinf_NumberOfSecurities" name="NumberOfSecurities" nillable="true" substitutionGroup="xbrli:item" type="xbrli:integerItemType" xbrli:periodType="instant" />
  <xsd:element id="cinf_NumberOfSecuritiesContinuousUnrealizedLossPositionMoreThanTwelveMonths" name="NumberOfSecuritiesContinuousUnrealizedLossPositionMoreThanTwelveMonths" nillable="true" substitutionGroup="xbrli:item" type="xbrli:integerItemType" xbrli:periodType="instant" />
  <xsd:element id="cinf_NumberOfSecuritiesContinuousUnrealizedLossPositionMoreThanTwelveMonthsandBelow70PercentofAmortizedCost" name="NumberOfSecuritiesContinuousUnrealizedLossPositionMoreThanTwelveMonthsandBelow70PercentofAmortizedCost" nillable="true" substitutionGroup="xbrli:item" type="xbrli:integerItemType" xbrli:periodType="instant" />
  <xsd:element id="cinf_NumberOfSecuritiesOtherThanTemporaryImpairmentLosses1" name="NumberOfSecuritiesOtherThanTemporaryImpairmentLosses1" nillable="true" substitutionGroup="xbrli:item" type="xbrli:integerItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="cinf_OtherCommercialLinesMember" name="OtherCommercialLinesMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="cinf_OtherComprehensiveIncomeChangeInLifeDeferredAcquisitionCostsLifePolicyReservesAndOtherTax" name="OtherComprehensiveIncomeChangeInLifeDeferredAcquisitionCostsLifePolicyReservesAndOtherTax" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element id="cinf_OtherComprehensiveIncomeChangeInLifeDeferredAcquistionCostsLifePolicyReservesAndOtherNetOfTax" name="OtherComprehensiveIncomeChangeInLifeDeferredAcquistionCostsLifePolicyReservesAndOtherNetOfTax" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element id="cinf_OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAndOtherAssetsAdjustmentBeforeTax" name="OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAndOtherAssetsAdjustmentBeforeTax" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element id="cinf_OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAndOtherAssetsAdjustmentNetOfTax" name="OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAndOtherAssetsAdjustmentNetOfTax" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element id="cinf_OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAndOtherAssetsAdjustmentTax" name="OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAndOtherAssetsAdjustmentTax" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element id="cinf_OtherComprehensiveIncomeLossDeferredAcquisitionCostsLifePolicyReservesAndOtherAdjustmentBeforeTax" name="OtherComprehensiveIncomeLossDeferredAcquisitionCostsLifePolicyReservesAndOtherAdjustmentBeforeTax" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element id="cinf_OtherComprehensiveIncomeLossDeferredAcquisitionCostsLifePolicyReservesAndOtherAdjustmentNetOfTax" name="OtherComprehensiveIncomeLossDeferredAcquisitionCostsLifePolicyReservesAndOtherAdjustmentNetOfTax" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element id="cinf_OtherComprehensiveIncomeLossDeferredAcquisitionCostsLifePolicyReservesAndOtherAdjustmentTax" name="OtherComprehensiveIncomeLossDeferredAcquisitionCostsLifePolicyReservesAndOtherAdjustmentTax" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element id="cinf_OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansNetActuarialLossAndPriorServiceCostArisingDuringPeriodTax" name="OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansNetActuarialLossAndPriorServiceCostArisingDuringPeriodTax" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="cinf_OtherInvestmentContractReservesMember" name="OtherInvestmentContractReservesMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="cinf_OtherLifePolicyReservesMember" name="OtherLifePolicyReservesMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="cinf_OtherPersonalLinesMember" name="OtherPersonalLinesMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="cinf_OtherRealizedInvestmentGainsLossesNet" name="OtherRealizedInvestmentGainsLossesNet" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element id="cinf_OtherThanTemporaryImpairmentLosses" name="OtherThanTemporaryImpairmentLosses" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element id="cinf_PercentageOfLevel3AssetsToTotalFinancialInstrumentsMeasuredAtFairValue" name="PercentageOfLevel3AssetsToTotalFinancialInstrumentsMeasuredAtFairValue" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="instant" />
  <xsd:element abstract="true" id="cinf_PersonalAutoMember" name="PersonalAutoMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="cinf_PropertyCasualtyInsuranceLossAndLossExpensesIncurredOnAssumedAndCededBusinessTextBlock" name="PropertyCasualtyInsuranceLossAndLossExpensesIncurredOnAssumedAndCededBusinessTextBlock" nillable="true" substitutionGroup="xbrli:item" type="nonnum:textBlockItemType" xbrli:periodType="duration" />
  <xsd:element id="cinf_PropertyCasualtyInsurancePremiumsEarnedOnAssumedAndCededBusinessTextBlock" name="PropertyCasualtyInsurancePremiumsEarnedOnAssumedAndCededBusinessTextBlock" nillable="true" substitutionGroup="xbrli:item" type="nonnum:textBlockItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="cinf_PropertyCasualtyInsurancePremiumsWrittenOnAssumedAndCededBusinessLineItems" name="PropertyCasualtyInsurancePremiumsWrittenOnAssumedAndCededBusinessLineItems" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="cinf_PropertyCasualtyInsurancePremiumsWrittenOnAssumedAndCededBusinessTable" name="PropertyCasualtyInsurancePremiumsWrittenOnAssumedAndCededBusinessTable" nillable="true" substitutionGroup="xbrldt:hypercubeItem" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element id="cinf_PropertyCasualtyInsurancePremiumsWrittenOnAssumedAndCededBusinessTableTextBlock" name="PropertyCasualtyInsurancePremiumsWrittenOnAssumedAndCededBusinessTableTextBlock" nillable="true" substitutionGroup="xbrli:item" type="nonnum:textBlockItemType" xbrli:periodType="duration" />
  <xsd:element id="cinf_PurchaseOfTreasurySharesNonCash" name="PurchaseOfTreasurySharesNonCash" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="cinf_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeLineItems" name="ReclassificationOutOfAccumulatedOtherComprehensiveIncomeLineItems" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element id="cinf_ReclassificationfromAccumulatedOtherComprehensiveIncomeCurrentPeriodTax" name="ReclassificationfromAccumulatedOtherComprehensiveIncomeCurrentPeriodTax" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="cinf_ReinsuranceassumedandothernonsegmentMember" name="ReinsuranceassumedandothernonsegmentMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="cinf_ScheduleOfEarningsPerShareBasicAndDilutedByCommonClassLineItems" name="ScheduleOfEarningsPerShareBasicAndDilutedByCommonClassLineItems" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="cinf_ScheduleOfEarningsPerShareBasicAndDilutedByCommonClassTable" name="ScheduleOfEarningsPerShareBasicAndDilutedByCommonClassTable" nillable="true" substitutionGroup="xbrldt:hypercubeItem" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element id="cinf_ScheduleOfInvestmentIncomeRealizedGainLossComprehensiveIncomeLossTableTextBlock" name="ScheduleOfInvestmentIncomeRealizedGainLossComprehensiveIncomeLossTableTextBlock" nillable="true" substitutionGroup="xbrli:item" type="nonnum:textBlockItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="cinf_ScheduleofDeferredPolicyAcquisitionCostsLineItems" name="ScheduleofDeferredPolicyAcquisitionCostsLineItems" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="cinf_ScheduleofDeferredPolicyAcquisitionCostsTable" name="ScheduleofDeferredPolicyAcquisitionCostsTable" nillable="true" substitutionGroup="xbrldt:hypercubeItem" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="cinf_SeniorDebentures692PercentDue2028Member" name="SeniorDebentures692PercentDue2028Member" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="cinf_SeniorDebentures69PercentDue2028Member" name="SeniorDebentures69PercentDue2028Member" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="cinf_SeniorDebenturesSixPointNinePercentDueTwentyTwentyEightMember" name="SeniorDebenturesSixPointNinePercentDueTwentyTwentyEightMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="cinf_SeniorDebenturesSixPointNineTwoPercentDueTwentyTwentyEightMember" name="SeniorDebenturesSixPointNineTwoPercentDueTwentyTwentyEightMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="cinf_SeniorNotes6125PercentDue2034Member" name="SeniorNotes6125PercentDue2034Member" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="cinf_SeniorNotesSixPointOneTwoFivePercentDueTwentyThirtyFourMember" name="SeniorNotesSixPointOneTwoFivePercentDueTwentyThirtyFourMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="cinf_SharesAcquiredDuringPeriodEmployeeShareBasedCompensationPlans" name="SharesAcquiredDuringPeriodEmployeeShareBasedCompensationPlans" nillable="true" substitutionGroup="xbrli:item" type="xbrli:sharesItemType" xbrli:periodType="duration" />
  <xsd:element id="cinf_SharesAcquiredDuringPeriodValueEmployeeShareBasedCompensationPlans" name="SharesAcquiredDuringPeriodValueEmployeeShareBasedCompensationPlans" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="cinf_StructuredSettlementsMember" name="StructuredSettlementsMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="cinf_SummaryOfConsolidatedPropertyCasualtyLossAndLossExpenseReservesRollForward" name="SummaryOfConsolidatedPropertyCasualtyLossAndLossExpenseReservesRollForward" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="cinf_TaxableFixedMaturitiesMember" name="TaxableFixedMaturitiesMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="cinf_UnderwritingAcquisitionAndInsuranceExpenses" name="UnderwritingAcquisitionAndInsuranceExpenses" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="cinf_WorkersCompensationMember" name="WorkersCompensationMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
</xsd:schema>
</XBRL>