<?xml version="1.0" encoding="US-ASCII"?>
<!--XBRL Document Created with Wdesk from Workiva-->
<!-- -->
<xsd:schema attributeFormDefault="unqualified" elementFormDefault="qualified" targetNamespace="http://jrgh.net/20190630" xmlns:jrvr="http://jrgh.net/20190630" 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/srt-types/2019-01-31" schemaLocation="http://xbrl.fasb.org/srt/2019/elts/srt-types-2019-01-31.xsd" />
  <xsd:import namespace="http://fasb.org/srt/2019-01-31" schemaLocation="http://xbrl.fasb.org/srt/2019/elts/srt-2019-01-31.xsd" />
  <xsd:import namespace="http://fasb.org/us-gaap/2019-01-31" schemaLocation="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd" />
  <xsd:import namespace="http://fasb.org/us-roles/2019-01-31" schemaLocation="http://xbrl.fasb.org/us-gaap/2019/elts/us-roles-2019-01-31.xsd" />
  <xsd:import namespace="http://fasb.org/us-types/2019-01-31" schemaLocation="http://xbrl.fasb.org/us-gaap/2019/elts/us-types-2019-01-31.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/2017-01-31" schemaLocation="https://xbrl.sec.gov/country/2017/country-2017-01-31.xsd" />
  <xsd:import namespace="http://xbrl.sec.gov/currency/2019-01-31" schemaLocation="https://xbrl.sec.gov/currency/2019/currency-2019-01-31.xsd" />
  <xsd:import namespace="http://xbrl.sec.gov/dei/2019-01-31" schemaLocation="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd" />
  <xsd:import namespace="http://xbrl.sec.gov/exch/2019-01-31" schemaLocation="https://xbrl.sec.gov/exch/2019/exch-2019-01-31.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/2017-01-31" schemaLocation="http://xbrl.sec.gov/naics/2017/naics-2017-01-31.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/2018-01-31" schemaLocation="https://xbrl.sec.gov/stpr/2018/stpr-2018-01-31.xsd" />
  <xsd:annotation>
    <xsd:appinfo>
      <link:linkbaseRef xlink:arcrole="http://www.w3.org/1999/xlink/properties/linkbase" xlink:href="jrvr-20190630_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="jrvr-20190630_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="jrvr-20190630_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="jrvr-20190630_pre.xml" xlink:role="http://www.xbrl.org/2003/role/presentationLinkbaseRef" xlink:type="simple" />
      <link:roleType id="AccountingPolicies" roleURI="http://jrgh.net/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="AccountingPoliciesNarrativeDetails" roleURI="http://jrgh.net/role/AccountingPoliciesNarrativeDetails">
        <link:definition>2401403 - Disclosure - Accounting Policies - 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="AccountingPoliciesPolicies" roleURI="http://jrgh.net/role/AccountingPoliciesPolicies">
        <link:definition>2201201 - Disclosure - Accounting Policies (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="AccountingPoliciesSummaryOfOperatingLeaseMaturitiesDetails" roleURI="http://jrgh.net/role/AccountingPoliciesSummaryOfOperatingLeaseMaturitiesDetails">
        <link:definition>2401404 - Disclosure - Accounting Policies - Summary of Operating Lease Maturities (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="AccountingPoliciesSummaryOfOperatingLeaseMaturitiesDetailsCalc2" roleURI="http://jrgh.net/role/AccountingPoliciesSummaryOfOperatingLeaseMaturitiesDetailsCalc2">
        <link:definition>2401404 - Disclosure - Accounting Policies - Summary of Operating Lease Maturities (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="AccountingPoliciesTables" roleURI="http://jrgh.net/role/AccountingPoliciesTables">
        <link:definition>2301302 - Disclosure - Accounting Policies (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="CapitalStockAndEquityAwards" roleURI="http://jrgh.net/role/CapitalStockAndEquityAwards">
        <link:definition>2111100 - Disclosure - Capital Stock and Equity Awards</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="CapitalStockAndEquityAwardsCommonsSharesDetails" roleURI="http://jrgh.net/role/CapitalStockAndEquityAwardsCommonsSharesDetails">
        <link:definition>2411402 - Disclosure - Capital Stock and Equity Awards - Commons Shares (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="CapitalStockAndEquityAwardsCompensationExpenseDetails" roleURI="http://jrgh.net/role/CapitalStockAndEquityAwardsCompensationExpenseDetails">
        <link:definition>2411408 - Disclosure - Capital Stock and Equity Awards - Compensation Expense (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="CapitalStockAndEquityAwardsEquityIncentivePlansDetails" roleURI="http://jrgh.net/role/CapitalStockAndEquityAwardsEquityIncentivePlansDetails">
        <link:definition>2411404 - Disclosure - Capital Stock and Equity Awards - Equity Incentive Plans (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="CapitalStockAndEquityAwardsScheduleOfDividendsDetails" roleURI="http://jrgh.net/role/CapitalStockAndEquityAwardsScheduleOfDividendsDetails">
        <link:definition>2411403 - Disclosure - Capital Stock and Equity Awards - Schedule of Dividends (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="CapitalStockAndEquityAwardsSummaryOfOptionActivityDetails" roleURI="http://jrgh.net/role/CapitalStockAndEquityAwardsSummaryOfOptionActivityDetails">
        <link:definition>2411405 - Disclosure - Capital Stock and Equity Awards - Summary of Option Activity (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="CapitalStockAndEquityAwardsSummaryOfRsuActivityDetails" roleURI="http://jrgh.net/role/CapitalStockAndEquityAwardsSummaryOfRsuActivityDetails">
        <link:definition>2411406 - Disclosure - Capital Stock and Equity Awards - Summary of RSU Activity (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="CapitalStockAndEquityAwardsSummaryOfShareBasedCompensationExpenseDetails" roleURI="http://jrgh.net/role/CapitalStockAndEquityAwardsSummaryOfShareBasedCompensationExpenseDetails">
        <link:definition>2411407 - Disclosure - Capital Stock and Equity Awards - Summary of Share Based Compensation Expense (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="CapitalStockAndEquityAwardsTables" roleURI="http://jrgh.net/role/CapitalStockAndEquityAwardsTables">
        <link:definition>2311301 - Disclosure - Capital Stock and Equity Awards (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="CondensedConsolidatedBalanceSheets" roleURI="http://jrgh.net/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="CondensedConsolidatedBalanceSheetsParentheticals" roleURI="http://jrgh.net/role/CondensedConsolidatedBalanceSheetsParentheticals">
        <link:definition>1001501 - Statement - Condensed Consolidated Balance Sheets (Parentheticals)</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="CondensedConsolidatedStatementsOfCashFlowsUnaudited" roleURI="http://jrgh.net/role/CondensedConsolidatedStatementsOfCashFlowsUnaudited">
        <link:definition>1004000 - Statement - Condensed Consolidated Statements of Cash Flows (Unaudited)</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="CondensedConsolidatedStatementsOfChangesInShareholdersEquityUnaudited" roleURI="http://jrgh.net/role/CondensedConsolidatedStatementsOfChangesInShareholdersEquityUnaudited">
        <link:definition>1003000 - Statement - Condensed Consolidated Statements of Changes in Shareholders' Equity (Unaudited)</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="CondensedConsolidatedStatementsOfIncomeAndComprehensiveIncomeUnaudited" roleURI="http://jrgh.net/role/CondensedConsolidatedStatementsOfIncomeAndComprehensiveIncomeUnaudited">
        <link:definition>1002000 - Statement - Condensed Consolidated Statements of Income and Comprehensive Income (Unaudited)</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="CondensedConsolidatedStatementsOfIncomeAndComprehensiveIncomeUnauditedParentheticals" roleURI="http://jrgh.net/role/CondensedConsolidatedStatementsOfIncomeAndComprehensiveIncomeUnauditedParentheticals">
        <link:definition>1002501 - Statement - Condensed Consolidated Statements of Income and Comprehensive Income (Unaudited) (Parentheticals)</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="ContingentLiabilities" roleURI="http://jrgh.net/role/ContingentLiabilities">
        <link:definition>2107100 - Disclosure - 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="ContingentLiabilitiesNarrativeDetails" roleURI="http://jrgh.net/role/ContingentLiabilitiesNarrativeDetails">
        <link:definition>2407401 - Disclosure - 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="DocumentAndEntityInformation" roleURI="http://jrgh.net/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="EarningsPerShare" roleURI="http://jrgh.net/role/EarningsPerShare">
        <link:definition>2104100 - Disclosure - Earnings Per 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="EarningsPerShareBasicAndDilutedEarningsPerShareDetails" roleURI="http://jrgh.net/role/EarningsPerShareBasicAndDilutedEarningsPerShareDetails">
        <link:definition>2404403 - Disclosure - Earnings Per Share - Basic and Diluted Earnings Per Share (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="EarningsPerShareNarrativeDetails" roleURI="http://jrgh.net/role/EarningsPerShareNarrativeDetails">
        <link:definition>2404402 - Disclosure - Earnings Per Share - 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="EarningsPerShareTables" roleURI="http://jrgh.net/role/EarningsPerShareTables">
        <link:definition>2304301 - Disclosure - Earnings Per 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="FairValueMeasurements" roleURI="http://jrgh.net/role/FairValueMeasurements">
        <link:definition>2110100 - 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="FairValueMeasurementsNarrativeDetails" roleURI="http://jrgh.net/role/FairValueMeasurementsNarrativeDetails">
        <link:definition>2410402 - Disclosure - Fair Value Measurements - 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="FairValueMeasurementsSummaryOfAssetsFairValueOnNonrecurringBasisDetails" roleURI="http://jrgh.net/role/FairValueMeasurementsSummaryOfAssetsFairValueOnNonrecurringBasisDetails">
        <link:definition>2410404 - Disclosure - Fair Value Measurements - Summary of Assets Fair Value on a Nonrecurring Basis (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="FairValueMeasurementsSummaryOfAssetsFairValueOnRecurringBasisDetails" roleURI="http://jrgh.net/role/FairValueMeasurementsSummaryOfAssetsFairValueOnRecurringBasisDetails">
        <link:definition>2410403 - Disclosure - Fair Value Measurements - Summary of Assets Fair Value on a Recurring Basis (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="FairValueMeasurementsSummaryOfFinancialInstrumentsDetails" roleURI="http://jrgh.net/role/FairValueMeasurementsSummaryOfFinancialInstrumentsDetails">
        <link:definition>2410405 - Disclosure - Fair Value Measurements - Summary of Financial Instruments (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="FairValueMeasurementsTables" roleURI="http://jrgh.net/role/FairValueMeasurementsTables">
        <link:definition>2310301 - 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="GoodwillAndIntangibleAssets" roleURI="http://jrgh.net/role/GoodwillAndIntangibleAssets">
        <link:definition>2103100 - Disclosure - Goodwill and Intangible Assets</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="GoodwillAndIntangibleAssetsNarrativeDetails" roleURI="http://jrgh.net/role/GoodwillAndIntangibleAssetsNarrativeDetails">
        <link:definition>2403402 - Disclosure - Goodwill and Intangible Assets - 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="GoodwillAndIntangibleAssetsScheduleOfIntangibleAssetsDetails" roleURI="http://jrgh.net/role/GoodwillAndIntangibleAssetsScheduleOfIntangibleAssetsDetails">
        <link:definition>2403403 - Disclosure - Goodwill and Intangible Assets - Schedule of Intangible Assets (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="GoodwillAndIntangibleAssetsTables" roleURI="http://jrgh.net/role/GoodwillAndIntangibleAssetsTables">
        <link:definition>2303301 - Disclosure - Goodwill and Intangible Assets (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://jrgh.net/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="InvestmentsNarrativeDetails" roleURI="http://jrgh.net/role/InvestmentsNarrativeDetails">
        <link:definition>2402402 - Disclosure - Investments - 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="InvestmentsScheduleOfAvailableForSaleInvestmentsDetails" roleURI="http://jrgh.net/role/InvestmentsScheduleOfAvailableForSaleInvestmentsDetails">
        <link:definition>2402403 - Disclosure - Investments - Schedule of Available-for-Sale 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="InvestmentsScheduleOfContractMaturitiesDetails" roleURI="http://jrgh.net/role/InvestmentsScheduleOfContractMaturitiesDetails">
        <link:definition>2402404 - Disclosure - Investments - Schedule of Contract Maturities (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="InvestmentsScheduleOfGrossUnrealizedLossesAndFairValueDetails" roleURI="http://jrgh.net/role/InvestmentsScheduleOfGrossUnrealizedLossesAndFairValueDetails">
        <link:definition>2402405 - Disclosure - Investments - Schedule of Gross Unrealized Losses and Fair Value (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="InvestmentsSummaryOfPrivateDebtAndEquityDetails" roleURI="http://jrgh.net/role/InvestmentsSummaryOfPrivateDebtAndEquityDetails">
        <link:definition>2402407 - Disclosure - Investments - Summary of Private Debt and Equity (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="InvestmentsSummaryOfRealizedGainsAndLossesDetails" roleURI="http://jrgh.net/role/InvestmentsSummaryOfRealizedGainsAndLossesDetails">
        <link:definition>2402406 - Disclosure - Investments - Summary of Realized Gains and Losses (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://jrgh.net/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="OtherComprehensiveIncomeLoss" roleURI="http://jrgh.net/role/OtherComprehensiveIncomeLoss">
        <link:definition>2106100 - Disclosure - Other Comprehensive Income (Loss)</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="OtherComprehensiveIncomeLossNarrativeDetails" roleURI="http://jrgh.net/role/OtherComprehensiveIncomeLossNarrativeDetails">
        <link:definition>2406403 - Disclosure - Other Comprehensive Income (Loss) - 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="OtherComprehensiveIncomeLossSummaryOfComprehensiveIncomeDetails" roleURI="http://jrgh.net/role/OtherComprehensiveIncomeLossSummaryOfComprehensiveIncomeDetails">
        <link:definition>2406402 - Disclosure - Other Comprehensive Income (Loss) - Summary of 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="OtherComprehensiveIncomeLossTables" roleURI="http://jrgh.net/role/OtherComprehensiveIncomeLossTables">
        <link:definition>2306301 - Disclosure - Other Comprehensive Income (Loss) (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="OtherOperatingExpensesAndOtherExpenses" roleURI="http://jrgh.net/role/OtherOperatingExpensesAndOtherExpenses">
        <link:definition>2109100 - Disclosure - Other Operating Expenses and Other 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="OtherOperatingExpensesAndOtherExpensesDetails" roleURI="http://jrgh.net/role/OtherOperatingExpensesAndOtherExpensesDetails">
        <link:definition>2409402 - Disclosure - Other Operating Expenses and Other Expenses (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="OtherOperatingExpensesAndOtherExpensesTables" roleURI="http://jrgh.net/role/OtherOperatingExpensesAndOtherExpensesTables">
        <link:definition>2309301 - Disclosure - Other Operating Expenses and Other 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="ReserveForLossesAndLossAdjustmentExpenses" roleURI="http://jrgh.net/role/ReserveForLossesAndLossAdjustmentExpenses">
        <link:definition>2105100 - Disclosure - Reserve for Losses and Loss Adjustment 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="ReserveForLossesAndLossAdjustmentExpensesNarrativeDetails" roleURI="http://jrgh.net/role/ReserveForLossesAndLossAdjustmentExpensesNarrativeDetails">
        <link:definition>2405402 - Disclosure - Reserve for Losses and Loss Adjustment Expenses - 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="ReserveForLossesAndLossAdjustmentExpensesReconciliationOfLossesAndLossAdjustmentBalancesDetails" roleURI="http://jrgh.net/role/ReserveForLossesAndLossAdjustmentExpensesReconciliationOfLossesAndLossAdjustmentBalancesDetails">
        <link:definition>2405403 - Disclosure - Reserve for Losses and Loss Adjustment Expenses - Reconciliation of Losses and Loss Adjustment Balances (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="ReserveForLossesAndLossAdjustmentExpensesTables" roleURI="http://jrgh.net/role/ReserveForLossesAndLossAdjustmentExpensesTables">
        <link:definition>2305301 - Disclosure - Reserve for Losses and Loss Adjustment 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="SegmentInformation" roleURI="http://jrgh.net/role/SegmentInformation">
        <link:definition>2108100 - 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="SegmentInformationNarrativeDetails" roleURI="http://jrgh.net/role/SegmentInformationNarrativeDetails">
        <link:definition>2408402 - 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="SegmentInformationReconciliationOfOperatingSegmentsByIndividualSegmentDetails" roleURI="http://jrgh.net/role/SegmentInformationReconciliationOfOperatingSegmentsByIndividualSegmentDetails">
        <link:definition>2408404 - Disclosure - Segment Information - Reconciliation of Operating Segments by Individual Segment (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="SegmentInformationSummaryOfSegmentResultsDetails" roleURI="http://jrgh.net/role/SegmentInformationSummaryOfSegmentResultsDetails">
        <link:definition>2408403 - Disclosure - Segment Information - Summary of Segment Results (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://jrgh.net/role/SegmentInformationTables">
        <link:definition>2308301 - 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>
      <link:roleType id="SubsequentEvents" roleURI="http://jrgh.net/role/SubsequentEvents">
        <link:definition>2112100 - Disclosure - Subsequent Events</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="SubsequentEventsDetails" roleURI="http://jrgh.net/role/SubsequentEventsDetails">
        <link:definition>2412401 - Disclosure - Subsequent Events (Details)</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="jrvr_A2013FacilityMember" name="A2013FacilityMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="jrvr_A2017FacilityMember" name="A2017FacilityMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="jrvr_AcquiredIntangibleAssetsLineItems" name="AcquiredIntangibleAssetsLineItems" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element id="jrvr_AssetsDepositedForSecuringLettersOfCredit" name="AssetsDepositedForSecuringLettersOfCredit" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element abstract="true" id="jrvr_BankHoldingCompaniesMember" name="BankHoldingCompaniesMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="jrvr_BankLoanParticipationsAbstract" name="BankLoanParticipationsAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element id="jrvr_BankLoanParticipationsGrossRealizedGain" name="BankLoanParticipationsGrossRealizedGain" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element id="jrvr_BankLoanParticipationsGrossRealizedGainLoss" name="BankLoanParticipationsGrossRealizedGainLoss" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element id="jrvr_BankLoanParticipationsGrossRealizedLoss" name="BankLoanParticipationsGrossRealizedLoss" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="jrvr_BrokerRelationshipsMember" name="BrokerRelationshipsMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="jrvr_CarryingValueOfCollateralizedLoanObligationHeld" name="CarryingValueOfCollateralizedLoanObligationHeld" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element id="jrvr_CarryingValuesOfLimitedPartnershipsHeld" name="CarryingValuesOfLimitedPartnershipsHeld" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element abstract="true" id="jrvr_CasualtyReinsuranceMember" name="CasualtyReinsuranceMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="jrvr_CommercialMortgageAndAssetBackedAmortizedCost" name="CommercialMortgageAndAssetBackedAmortizedCost" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element id="jrvr_CommercialMortgageAndAssetBackedFairValue" name="CommercialMortgageAndAssetBackedFairValue" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element id="jrvr_CommitmenttoInvestmentInLimitedPartnership" name="CommitmenttoInvestmentInLimitedPartnership" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element id="jrvr_CommonShareEquivalentsEarningsPerShare" name="CommonShareEquivalentsEarningsPerShare" nillable="true" substitutionGroup="xbrli:item" type="num:perShareItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="jrvr_ContingentLiabilitiesLineItems" name="ContingentLiabilitiesLineItems" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="jrvr_ContingentLiabilitiesTable" name="ContingentLiabilitiesTable" nillable="true" substitutionGroup="xbrldt:hypercubeItem" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="jrvr_DevelopmentOnPriorYearLossReservesAbstract" name="DevelopmentOnPriorYearLossReservesAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element id="jrvr_EquitySecuritiesChangesinFairValue" name="EquitySecuritiesChangesinFairValue" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="jrvr_ExcessAndSurplusLinesMember" name="ExcessAndSurplusLinesMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="jrvr_FeeIncome" name="FeeIncome" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element id="jrvr_ImpairedBankLoanParticipationsHeldForInvestment" name="ImpairedBankLoanParticipationsHeldForInvestment" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element id="jrvr_ImpairedFinancingReceivableInterestIncome" name="ImpairedFinancingReceivableInterestIncome" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="jrvr_InvestmentInBankHoldingCompanyMember" name="InvestmentInBankHoldingCompanyMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="jrvr_InvestmentInLlcMember" name="InvestmentInLlcMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="jrvr_JamesRiverGroupIncMember" name="JamesRiverGroupIncMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="jrvr_JamesRiverInsuranceCoMember" name="JamesRiverInsuranceCoMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="jrvr_JrgReinsuranceCompanyLtdMember" name="JrgReinsuranceCompanyLtdMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="jrvr_LetterOfCredit75MillionMember" name="LetterOfCredit75MillionMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="jrvr_LetterOfCreditFacilityAmount" name="LetterOfCreditFacilityAmount" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element id="jrvr_LiabilityForClaimsAndClaimsAdjustmentExpenseTextBlock" name="LiabilityForClaimsAndClaimsAdjustmentExpenseTextBlock" nillable="true" substitutionGroup="xbrli:item" type="nonnum:textBlockItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="jrvr_LongTermIncentivePlan2014Member" name="LongTermIncentivePlan2014Member" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="jrvr_NonEmployeeDirectorIncentivePlan2014Member" name="NonEmployeeDirectorIncentivePlan2014Member" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="jrvr_NonemployeeDirectorsMember" name="NonemployeeDirectorsMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="jrvr_NotesReceivable" name="NotesReceivable" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element id="jrvr_NumberOfImpairedLoans" name="NumberOfImpairedLoans" nillable="true" substitutionGroup="xbrli:item" type="xbrli:integerItemType" xbrli:periodType="duration" />
  <xsd:element id="jrvr_NumberOfInsuranceCompanies" name="NumberOfInsuranceCompanies" nillable="true" substitutionGroup="xbrli:item" type="xbrli:integerItemType" xbrli:periodType="instant" />
  <xsd:element id="jrvr_NumberofCreditFacilities" name="NumberofCreditFacilities" nillable="true" substitutionGroup="xbrli:item" type="xbrli:integerItemType" xbrli:periodType="instant" />
  <xsd:element id="jrvr_NumberofImpairedFixedMaturitySecurities" name="NumberofImpairedFixedMaturitySecurities" nillable="true" substitutionGroup="xbrli:item" type="xbrli:integerItemType" xbrli:periodType="instant" />
  <xsd:element id="jrvr_OtherIncomeAndExpenses" name="OtherIncomeAndExpenses" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element id="jrvr_OtherInvestedAssetTableTextBlock" name="OtherInvestedAssetTableTextBlock" nillable="true" substitutionGroup="xbrli:item" type="nonnum:textBlockItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="jrvr_OtherOperatingExpensesAndOtherExpensesAbstract" name="OtherOperatingExpensesAndOtherExpensesAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element id="jrvr_OtherOperatingExpensesAndOtherExpensesTextBlock" name="OtherOperatingExpensesAndOtherExpensesTextBlock" nillable="true" substitutionGroup="xbrli:item" type="nonnum:textBlockItemType" xbrli:periodType="duration" />
  <xsd:element id="jrvr_OtherOperatingExpensesOfCorporateAndOtherSegment" name="OtherOperatingExpensesOfCorporateAndOtherSegment" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element id="jrvr_PaymentToAcquireBankLoanParticipations" name="PaymentToAcquireBankLoanParticipations" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element id="jrvr_PaymentsToAcquirePrivateSubordinatedDebt" name="PaymentsToAcquirePrivateSubordinatedDebt" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element id="jrvr_PercentageOfAvailableForSaleDebtSecurities" name="PercentageOfAvailableForSaleDebtSecurities" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="instant" />
  <xsd:element id="jrvr_ProceedsFromBankLoanParticipations" name="ProceedsFromBankLoanParticipations" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element id="jrvr_ProceedsFromMaturitiesOfBankLoanParticipations" name="ProceedsFromMaturitiesOfBankLoanParticipations" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element id="jrvr_ProceedsFromOtherInvestedAssetReturnOfCapital" name="ProceedsFromOtherInvestedAssetReturnOfCapital" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="jrvr_PuertoRicoLoanMember" name="PuertoRicoLoanMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="jrvr_RealizedGainLossOnChangesInFairValueOfImpairedBankLoans" name="RealizedGainLossOnChangesInFairValueOfImpairedBankLoans" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element id="jrvr_RedeemablePreferredStockAmortizedCost" name="RedeemablePreferredStockAmortizedCost" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element id="jrvr_RedeemablePreferredStockFairValue" name="RedeemablePreferredStockFairValue" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element abstract="true" id="jrvr_RenewableEnergyBridgeFinancingNotesMember" name="RenewableEnergyBridgeFinancingNotesMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="jrvr_RenewableEnergyLlcsMember" name="RenewableEnergyLlcsMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="jrvr_ReserveForLossesAndLossAdjustmentExpensesLineItems" name="ReserveForLossesAndLossAdjustmentExpensesLineItems" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="jrvr_ReserveForLossesAndLossAdjustmentExpensesTable" name="ReserveForLossesAndLossAdjustmentExpensesTable" nillable="true" substitutionGroup="xbrldt:hypercubeItem" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element id="jrvr_ResidentialMortgageBackedAmortizedCost" name="ResidentialMortgageBackedAmortizedCost" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element id="jrvr_ResidentialMortgageBackedFairValue" name="ResidentialMortgageBackedFairValue" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element id="jrvr_RestrictedStockUnitDividendEquivalents" name="RestrictedStockUnitDividendEquivalents" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element abstract="true" id="jrvr_ScheduleOfAcquiredIntangibleAssetsTable" name="ScheduleOfAcquiredIntangibleAssetsTable" nillable="true" substitutionGroup="xbrldt:hypercubeItem" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element id="jrvr_ShareBasedArrangementbyShareBasedAwardOptionContractualLife" name="ShareBasedArrangementbyShareBasedAwardOptionContractualLife" nillable="true" substitutionGroup="xbrli:item" type="xbrli:durationItemType" xbrli:periodType="duration" />
  <xsd:element id="jrvr_ShortTermInvestmentsAndOtherGrossRealizedGains" name="ShortTermInvestmentsAndOtherGrossRealizedGains" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element id="jrvr_ShortTermInvestmentsAndOtherGrossRealizedGainsLosses" name="ShortTermInvestmentsAndOtherGrossRealizedGainsLosses" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element id="jrvr_ShortTermInvestmentsAndOtherGrossRealizedLosses" name="ShortTermInvestmentsAndOtherGrossRealizedLosses" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="jrvr_SpecialtyAdmittedInsuranceMember" name="SpecialtyAdmittedInsuranceMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="jrvr_StandardPoorsBelowBBBRatingMember" name="StandardPoorsBelowBBBRatingMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="jrvr_StockOptionsAndRestrictedStockUnitsRsuMember" name="StockOptionsAndRestrictedStockUnitsRsuMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="jrvr_ThirdpartyReinsuredsMember" name="ThirdpartyReinsuredsMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="jrvr_UnderwritingProfit" name="UnderwritingProfit" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element id="jrvr_UnderwritingProfitLossOfOperatingSegments" name="UnderwritingProfitLossOfOperatingSegments" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
</xsd:schema>
