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Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
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MIC-Info: RSA-MD5,RSA,
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<SEC-DOCUMENT>0001227021-10-000011.txt : 20100329
<SEC-HEADER>0001227021-10-000011.hdr.sgml : 20100329
<ACCEPTANCE-DATETIME>20100329135733
ACCESSION NUMBER:		0001227021-10-000011
CONFORMED SUBMISSION TYPE:	TA-2
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20091231
FILED AS OF DATE:		20100329
DATE AS OF CHANGE:		20100329
EFFECTIVENESS DATE:		20100329

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			BROWN BROTHERS HARRIMAN & CO
		CENTRAL INDEX KEY:			0001227021
		IRS NUMBER:				000000000

	FILING VALUES:
		FORM TYPE:		TA-2
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	084-06072
		FILM NUMBER:		10710160

	BUSINESS ADDRESS:	
		STREET 1:		140 BROADWAY
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10005
		BUSINESS PHONE:		212-483-1818
</SEC-HEADER>
<DOCUMENT>
<TYPE>TA-2
<SEQUENCE>1
<FILENAME>primary_doc.xml
<TEXT>
<XML>
<?xml version="1.0"?>
<edgarSubmission>

    <schemaVersion>X0502</schemaVersion>

    <submissionType>TA-2</submissionType>

    <testOrLive>LIVE</testOrLive>

    <formVersion>5.2.0</formVersion>

    <filer>
        <cik>0001227021</cik>
        <fileNumber>084-06072</fileNumber>
    </filer>

    <periodOfReport>2009-12-31</periodOfReport>

    <registrant>
        <entityName>Brown Brothers Harriman &amp; Co.</entityName>
    </registrant>

    <engagedServiceCompany>
        <function>NONE</function>
    </engagedServiceCompany>

    <engagedAsServiceCompany>
        <function>false</function>
    </engagedAsServiceCompany>

    <regulatoryAgency>SEC</regulatoryAgency>

    <inaccurateIncompleteMisleading>
        <amendmentFiled>YES</amendmentFiled>
        <additionalInformation></additionalInformation>
    </inaccurateIncompleteMisleading>

    <serviceCompanyData>
        <numberItemsReceivedForTransfer>10</numberItemsReceivedForTransfer>
        <numberMasterSecurityHolderFilings>293</numberMasterSecurityHolderFilings>
        <numberIndividualAccounts>293</numberIndividualAccounts>
        <numberDivReinvDirPurPlanAccounts>12</numberDivReinvDirPurPlanAccounts>
        <numberDirectRegistSystemAccounts>0</numberDirectRegistSystemAccounts>
        <securityHolderAccounts>
            <equitySecurity>0</equitySecurity>
            <debtSecurity>0</debtSecurity>
            <openEndInvestmentCompany>0</openEndInvestmentCompany>
            <limitedPartnership>0</limitedPartnership>
            <municipalDebt>0</municipalDebt>
            <other>100</other>
        </securityHolderAccounts>
        <databaseSearch>
            <databaseSearchDate>2010-03-23</databaseSearchDate>
            <numberLostAccountsSearched>0</numberLostAccountsSearched>
            <numberAddressesFromSearch>0</numberAddressesFromSearch>
        </databaseSearch>
        <numberLostAccountsRemittedToStates>0</numberLostAccountsRemittedToStates>
    </serviceCompanyData>

    <signatureData>
        <signatureName>Andrea C. Haney</signatureName>
        <signatureTitle>Assistant Vice President</signatureTitle>
        <signaturePhoneNumber>617.772.1081</signaturePhoneNumber>
        <signatureDate>2010-03-29</signatureDate>
    </signatureData>
</edgarSubmission>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
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