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  <schemaVersion>X0202</schemaVersion>
  <headerData>
    <submissionType>13F-HR/A</submissionType>
    <filerInfo>
      <liveTestFlag>LIVE</liveTestFlag>
      <flags/>
      <filer>
        <credentials>
          <cik>0000914976</cik>
          <ccc>XXXXXXXX</ccc>
        </credentials>
      </filer>
      <periodOfReport>12-31-2020</periodOfReport>
    </filerInfo>
  </headerData>
  <formData>
    <coverPage>
      <reportCalendarOrQuarter>12-31-2020</reportCalendarOrQuarter>
      <isAmendment>true</isAmendment>
      <amendmentNo>1</amendmentNo>
      <amendmentInfo>
        <amendmentType>NEW HOLDINGS</amendmentType>
        <confDeniedExpired>false</confDeniedExpired>
      </amendmentInfo>
      <filingManager>
        <name>Marshfield Associates</name>
        <address>
          <ns1:street1>21 Dupont Circle NW</ns1:street1>
          <ns1:street2>Suite 500</ns1:street2>
          <ns1:city>Washington</ns1:city>
          <ns1:stateOrCountry>DC</ns1:stateOrCountry>
          <ns1:zipCode>20036</ns1:zipCode>
        </address>
      </filingManager>
      <reportType>13F HOLDINGS REPORT</reportType>
      <form13FFileNumber>028-03998</form13FFileNumber>
      <crdNumber>000150614</crdNumber>
      <secFileNumber>801-70275</secFileNumber>
      <provideInfoForInstruction5>N</provideInfoForInstruction5>
    </coverPage>
    <signatureBlock>
      <name>Brian Walker</name>
      <title>General Counsel and Chief Compliance Officer</title>
      <phone>202-828-6200</phone>
      <signature>/s/ Brian Walker</signature>
      <city>Washington</city>
      <stateOrCountry>DC</stateOrCountry>
      <signatureDate>05-09-2023</signatureDate>
    </signatureBlock>
    <summaryPage>
      <otherIncludedManagersCount>0</otherIncludedManagersCount>
      <tableEntryTotal>2</tableEntryTotal>
      <tableValueTotal>8517860</tableValueTotal>
      <isConfidentialOmitted>false</isConfidentialOmitted>
    </summaryPage>
  </formData>
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