<?xml version="1.0" encoding="UTF-8"?>
<edgarSubmission xmlns="http://www.sec.gov/edgar/thirteenffiler" xmlns:com="http://www.sec.gov/edgar/common">
  <schemaVersion>X0202</schemaVersion>
  <headerData>
    <submissionType>13F-HR</submissionType>
    <filerInfo>
      <liveTestFlag>LIVE</liveTestFlag>
      <flags>
        <confirmingCopyFlag>false</confirmingCopyFlag>
        <returnCopyFlag>true</returnCopyFlag>
        <overrideInternetFlag>false</overrideInternetFlag>
      </flags>
      <filer>
        <credentials>
          <cik>0001141781</cik>
          <ccc>XXXXXXXX</ccc>
        </credentials>
      </filer>
      <periodOfReport>03-31-2026</periodOfReport>
    </filerInfo>
  </headerData>
  <formData>
    <coverPage>
      <reportCalendarOrQuarter>03-31-2026</reportCalendarOrQuarter>
      <filingManager>
        <name>NICHOLS &amp; PRATT ADVISERS LLP /MA</name>
        <address>
          <com:street1>50 CONGRESS STREET</com:street1>
          <com:city>BOSTON</com:city>
          <com:stateOrCountry>MA</com:stateOrCountry>
          <com:zipCode>02109</com:zipCode>
        </address>
      </filingManager>
      <reportType>13F HOLDINGS REPORT</reportType>
      <form13FFileNumber>028-06593</form13FFileNumber>
      <provideInfoForInstruction5>N</provideInfoForInstruction5>
    </coverPage>
    <signatureBlock>
      <name>Kimberly H. Latifi</name>
      <title>Chief Compliance Officer</title>
      <phone>617 523 6800</phone>
      <signature>Kimberly H. Latifi</signature>
      <city>Boston</city>
      <stateOrCountry>MA</stateOrCountry>
      <signatureDate>04-29-2026</signatureDate>
    </signatureBlock>
    <summaryPage>
      <otherIncludedManagersCount>5</otherIncludedManagersCount>
      <tableEntryTotal>188</tableEntryTotal>
      <tableValueTotal>1549280103</tableValueTotal>
      <isConfidentialOmitted>false</isConfidentialOmitted>
      <otherManagers2Info>
        <otherManager2>
          <sequenceNumber>6</sequenceNumber>
          <otherManager>
            <cik>0001389867</cik>
            <form13FFileNumber>028-12207</form13FFileNumber>
            <name>Herbert John K III</name>
          </otherManager>
        </otherManager2>
        <otherManager2>
          <sequenceNumber>7</sequenceNumber>
          <otherManager>
            <cik>0001568106</cik>
            <form13FFileNumber>028-15124</form13FFileNumber>
            <name>Bator Thomas E.</name>
          </otherManager>
        </otherManager2>
        <otherManager2>
          <sequenceNumber>8</sequenceNumber>
          <otherManager>
            <cik>0001799680</cik>
            <form13FFileNumber>028-20095</form13FFileNumber>
            <name>Nichols Richard K</name>
          </otherManager>
        </otherManager2>
        <otherManager2>
          <sequenceNumber>9</sequenceNumber>
          <otherManager>
            <cik>0001799678</cik>
            <form13FFileNumber>028-20092</form13FFileNumber>
            <name>Popov Patricia D</name>
          </otherManager>
        </otherManager2>
        <otherManager2>
          <sequenceNumber>10</sequenceNumber>
          <otherManager>
            <cik>0001905955</cik>
            <form13FFileNumber>028-21653</form13FFileNumber>
            <name>LATIFI KIMBERLY H</name>
          </otherManager>
        </otherManager2>
      </otherManagers2Info>
    </summaryPage>
  </formData>
</edgarSubmission>