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    <submissionType>13F-HR</submissionType>
    <filerInfo>
      <liveTestFlag>LIVE</liveTestFlag>
      <flags/>
      <filer>
        <credentials>
          <cik>0000859139</cik>
          <ccc>XXXXXXXX</ccc>
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      <periodOfReport>06-30-2021</periodOfReport>
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    <coverPage>
      <reportCalendarOrQuarter>06-30-2021</reportCalendarOrQuarter>
      <isAmendment>false</isAmendment>
      <filingManager>
        <name>Delphi Financial Group, Inc.</name>
        <address>
          <ns1:street1>P.O. Box 8985</ns1:street1>
          <ns1:street2>1105 North Market Street</ns1:street2>
          <ns1:city>Wilmington</ns1:city>
          <ns1:stateOrCountry>DE</ns1:stateOrCountry>
          <ns1:zipCode>19899</ns1:zipCode>
        </address>
      </filingManager>
      <reportType>13F COMBINATION REPORT</reportType>
      <form13FFileNumber>028-15443</form13FFileNumber>
      <otherManagersInfo>
        <otherManager>
          <form13FFileNumber>028-15442</form13FFileNumber>
          <name>Delphi Capital Management, Inc.</name>
        </otherManager>
        <otherManager>
          <form13FFileNumber>028-18312</form13FFileNumber>
          <name>Acorn Advisory Capital L.P.</name>
        </otherManager>
      </otherManagersInfo>
      <provideInfoForInstruction5>Y</provideInfoForInstruction5>
      <additionalInformation>Delphi Financial Group, Inc. ("DFG") is the parent company of Delphi Capital Management, Inc. ("DCM") and Acorn Advisory Capital L.P. ("Acorn Advisory"), each of which is an institutional investment manager for purposes of the reporting requirements under Section 13(f) of the Securities Exchange Act of 1934, as amended, and therefore may be deemed to have investment discretion with respect to Section 13(f) securities as to which DCM and Acorn Advisory possess investment discretion, as well as Section 13(f) securities as to which other subsidiaries of DFG possess investment discretion.  DFG is a direct wholly-owned subsidiary of Tokio Marine &amp; Nichido Fire Insurance Co., Ltd. and an indirect wholly-owned subsidiary of Tokio Marine Holdings, Inc.</additionalInformation>
    </coverPage>
    <signatureBlock>
      <name>Chad W. Coulter</name>
      <title>Senior Vice President, General Counsel and Secretary</title>
      <phone>(302) 478-5142</phone>
      <signature>/s/ Chad W. Coulter</signature>
      <city>Philadelphia</city>
      <stateOrCountry>PA</stateOrCountry>
      <signatureDate>08-06-2021</signatureDate>
    </signatureBlock>
    <summaryPage>
      <otherIncludedManagersCount>2</otherIncludedManagersCount>
      <tableEntryTotal>32</tableEntryTotal>
      <tableValueTotal>364490</tableValueTotal>
      <isConfidentialOmitted>false</isConfidentialOmitted>
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            <name>Delphi Capital Management, Inc.</name>
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          <otherManager>
            <form13FFileNumber>028-18312</form13FFileNumber>
            <name>Acorn Advisory Capital L.P.</name>
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