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      <periodOfReport>06/30/2026</periodOfReport>
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      <reportCalendarYear>2026</reportCalendarYear>
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        <name>BOSTON TRUST WALDEN FUNDS</name>
        <phoneNumber>800-282-8782</phoneNumber>
        <address>
          <com:street1>One Beacon Street</com:street1>
          <com:street2>34th Floor</com:street2>
          <com:city>Boston</com:city>
          <com:stateOrCountry>MA</com:stateOrCountry>
          <com:zipCode>02108</com:zipCode>
        </address>
      </reportingPerson>
      <agentForService>
        <name>The Northern Trust Company</name>
        <address>
          <com:street1>333 S Wabash</com:street1>
          <com:street2>44th Floor</com:street2>
          <com:city>Chicago</com:city>
          <com:stateOrCountry>IL</com:stateOrCountry>
          <com:zipCode>60604</com:zipCode>
        </address>
      </agentForService>
      <reportInfo>
        <reportType>FUND VOTING REPORT</reportType>
      </reportInfo>
      <fileNumber>811-06526</fileNumber>
      <reportingSecFileNumber>811-06526</reportingSecFileNumber>
      <leiNumber>254900RLCMWMYQ67RN94</leiNumber>
      <explanatoryInformation>
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          <nameOfSeries>Boston Trust Asset Management Fund</nameOfSeries>
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        <seriesReports>
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          <nameOfSeries>Boston Trust Walden Midcap Fund</nameOfSeries>
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        </seriesReports>
        <seriesReports>
          <idOfSeries>S000034664</idOfSeries>
          <nameOfSeries>Boston Trust SMID Cap Fund</nameOfSeries>
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        <seriesReports>
          <idOfSeries>S000034665</idOfSeries>
          <nameOfSeries>Boston Trust Walden SMID Cap Fund</nameOfSeries>
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        <seriesReports>
          <idOfSeries>S000041728</idOfSeries>
          <nameOfSeries>Boston Trust Walden International Equity Fund</nameOfSeries>
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    <signaturePage>
      <reportingPerson>BOSTON TRUST WALDEN FUNDS</reportingPerson>
      <txSignature>Lucia Santini</txSignature>
      <txPrintedSignature>Lucia Santini</txPrintedSignature>
      <txTitle>President</txTitle>
      <txAsOfDate>08/20/2026</txAsOfDate>
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