<?xml version="1.0" encoding="UTF-8"?>
<edgarSubmission xsi:schemaLocation="http://www.sec.gov/edgar/thirteenffiler eis_13F_Filer.xsd" xmlns="http://www.sec.gov/edgar/thirteenffiler" xmlns:ns1="http://www.sec.gov/edgar/common" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
  <schemaVersion>X0202</schemaVersion>
  <headerData>
    <submissionType>13F-NT</submissionType>
    <filerInfo>
      <liveTestFlag>LIVE</liveTestFlag>
      <flags>
        <confirmingCopyFlag>false</confirmingCopyFlag>
        <returnCopyFlag>false</returnCopyFlag>
        <overrideInternetFlag>false</overrideInternetFlag>
      </flags>
      <filer>
        <credentials>
          <cik>0001335730</cik>
          <ccc>XXXXXXXX</ccc>
        </credentials>
      </filer>
      <periodOfReport>03-31-2026</periodOfReport>
    </filerInfo>
  </headerData>
  <formData>
    <coverPage>
      <reportCalendarOrQuarter>03-31-2026</reportCalendarOrQuarter>
      <isAmendment>false</isAmendment>
      <filingManager>
        <name>MIZUHO FINANCIAL GROUP INC</name>
        <address>
          <ns1:street1>1-5-5, OTEMACHI</ns1:street1>
          <ns1:city>CHIYODA-KU, TOKYO</ns1:city>
          <ns1:stateOrCountry>M0</ns1:stateOrCountry>
          <ns1:zipCode>100-8176</ns1:zipCode>
        </address>
      </filingManager>
      <reportType>13F NOTICE</reportType>
      <form13FFileNumber>028-14124</form13FFileNumber>
      <otherManagersInfo>
        <otherManager>
          <cik>0001512734</cik>
          <form13FFileNumber>028-14226</form13FFileNumber>
          <name>Mizuho Bank, Ltd.</name>
        </otherManager>
        <otherManager>
          <cik>0001520309</cik>
          <form13FFileNumber>028-19142</form13FFileNumber>
          <name>Mizuho Securities Co. Ltd.</name>
        </otherManager>
        <otherManager>
          <cik>0001068855</cik>
          <form13FFileNumber>028-07332</form13FFileNumber>
          <crdNumber>000110843</crdNumber>
          <secFileNumber>801-55047</secFileNumber>
          <name>Asset Management One Co., Ltd.</name>
        </otherManager>
        <otherManager>
          <cik>0000812291</cik>
          <form13FFileNumber>028-25682</form13FFileNumber>
          <crdNumber>000019647</crdNumber>
          <secFileNumber>8-37710</secFileNumber>
          <name>MIZUHO SECURITIES USA LLC</name>
        </otherManager>
        <otherManager>
          <cik>0001803149</cik>
          <form13FFileNumber>028-19904</form13FFileNumber>
          <name>Mizuho Markets Cayman LP</name>
        </otherManager>
        <otherManager>
          <cik>0001825516</cik>
          <form13FFileNumber>028-20530</form13FFileNumber>
          <name>MIZUHO MARKETS AMERICAS LLC</name>
        </otherManager>
        <otherManager>
          <cik>0001908623</cik>
          <form13FFileNumber>028-22802</form13FFileNumber>
          <name>PayPay Securities Corp</name>
        </otherManager>
        <otherManager>
          <cik>0001964389</cik>
          <form13FFileNumber>028-22801</form13FFileNumber>
          <name>PPSC Investment Service Corp</name>
        </otherManager>
        <otherManager>
          <cik>0002009539</cik>
          <form13FFileNumber>028-23558</form13FFileNumber>
          <name>Rakuten Securities, Inc.</name>
        </otherManager>
      </otherManagersInfo>
      <provideInfoForInstruction5>N</provideInfoForInstruction5>
    </coverPage>
    <signatureBlock>
      <name>Takahiro Katsura</name>
      <title>MD, Global Corporate Function Coordination Dep.</title>
      <phone>81-3-5220-7725</phone>
      <signature>/s/ Takahiro Katsura</signature>
      <city>Tokyo</city>
      <stateOrCountry>M0</stateOrCountry>
      <signatureDate>05-14-2026</signatureDate>
    </signatureBlock>
    <summaryPage>
      <otherIncludedManagersCount/>
      <tableEntryTotal/>
      <tableValueTotal/>
    </summaryPage>
  </formData>
</edgarSubmission>
