<?xml version="1.0" encoding="UTF-8"?>
<edgarSubmission xmlns="http://www.sec.gov/edgar/thirteenffiler" xmlns:com="http://www.sec.gov/edgar/common">
  <headerData>
    <submissionType>13F-NT</submissionType>
    <filerInfo>
      <liveTestFlag>LIVE</liveTestFlag>
      <flags>
        <confirmingCopyFlag>false</confirmingCopyFlag>
        <returnCopyFlag>false</returnCopyFlag>
        <overrideInternetFlag>false</overrideInternetFlag>
      </flags>
      <filer>
        <credentials>
          <cik>0000796370</cik>
          <ccc>XXXXXXXX</ccc>
        </credentials>
      </filer>
      <periodOfReport>06-30-2019</periodOfReport>
    </filerInfo>
  </headerData>
  <formData>
    <coverPage>
      <reportCalendarOrQuarter>06-30-2019</reportCalendarOrQuarter>
      <filingManager>
        <name>BrightSphere Inc.</name>
        <address>
          <com:street1>200 CLARENDON STREET, 53RD FLOOR</com:street1>
          <com:city>BOSTON</com:city>
          <com:stateOrCountry>MA</com:stateOrCountry>
          <com:zipCode>02116</com:zipCode>
        </address>
      </filingManager>
      <reportType>13F NOTICE</reportType>
      <form13FFileNumber>028-11931</form13FFileNumber>
      <otherManagersInfo>
        <otherManager>
          <cik>0000916542</cik>
          <form13FFileNumber>028-05990</form13FFileNumber>
          <name>ACADIAN ASSET MANAGEMENT LLC</name>
        </otherManager>
        <otherManager>
          <cik>0000313028</cik>
          <form13FFileNumber>028-01006</form13FFileNumber>
          <name>BARROW HANLEY MEWHINNEY &amp; STRAUSS LLC</name>
        </otherManager>
        <otherManager>
          <cik>0001352543</cik>
          <form13FFileNumber>028-11628</form13FFileNumber>
          <name>Copper Rock Capital Partners, LLC</name>
        </otherManager>
        <otherManager>
          <cik>0000051964</cik>
          <form13FFileNumber>028-00880</form13FFileNumber>
          <name>INVESTMENT COUNSELORS OF MARYLAND LLC</name>
        </otherManager>
        <otherManager>
          <cik>0001008322</cik>
          <form13FFileNumber>028-04041</form13FFileNumber>
          <name>THOMPSON SIEGEL &amp; WALMSLEY LLC</name>
        </otherManager>
      </otherManagersInfo>
      <provideInfoForInstruction5>Y</provideInfoForInstruction5>
      <additionalInformation>BrightSphere Inc. ("BrightSphere") is the ultimate operating U.S. parent holding company of certain asset management subsidiaries of BrightSphere Investment Group plc that are subject to applicable 13F filing requirements. BrightSphere expressly disclaims beneficial ownership of all reported securities. BrightSphere does not exercise voting or investment power over any reported security. Each BrightSphere asset management firm exercises such power independently of BrightSphere and one another.</additionalInformation>
    </coverPage>
    <signatureBlock>
      <name>Amy Yuter</name>
      <title>Chief Compliance Officer</title>
      <phone>610-578-1387</phone>
      <signature>/s/ Amy Yuter</signature>
      <city>Berwyn</city>
      <stateOrCountry>PA</stateOrCountry>
      <signatureDate>07-09-2019</signatureDate>
    </signatureBlock>
  </formData>
</edgarSubmission>
