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Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
Originator-Key-Asymmetric:
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 TWSM7vrzLADbmYQaionwg5sDW3P6oaM5D3tdezXMm7z1T+B+twIDAQAB
MIC-Info: RSA-MD5,RSA,
 FSF+tXMcH4bIeltAVvE3FVgj+JEJDBOQBnkFQ6OSSDP3bEgm5ti/ipbNJSLzSolI
 2XlKAqT+9TSB9fn8EY8v6A==

<SEC-DOCUMENT>0001116679-06-002017.txt : 20060823
<SEC-HEADER>0001116679-06-002017.hdr.sgml : 20060823
<ACCEPTANCE-DATETIME>20060823162453
ACCESSION NUMBER:		0001116679-06-002017
CONFORMED SUBMISSION TYPE:	3
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20051216
FILED AS OF DATE:		20060823
DATE AS OF CHANGE:		20060823

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			EXCELSIOR BUYOUT INVESTORS LLC
		CENTRAL INDEX KEY:			0001213980
		IRS NUMBER:				000000000

	MAIL ADDRESS:	
		STREET 1:		225 HIGH RIDGE RD
		CITY:			STAMFORD
		STATE:			CT
		ZIP:			06905

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	EXCELSIOR CORPORATE FINANCE INVESTORS LLC
		DATE OF NAME CHANGE:	20030113

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			UNITED STATES TRUST COMPANY, N.A.
		CENTRAL INDEX KEY:			0001085059

	FILING VALUES:
		FORM TYPE:		3
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	811-21283
		FILM NUMBER:		061051191

	BUSINESS ADDRESS:	
		STREET 1:		114 WEST 47TH STREET
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10036
		BUSINESS PHONE:		2128521713

	MAIL ADDRESS:	
		STREET 1:		114 WEST 47TH STREET
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10036

	FORMER NAME:	
		FORMER CONFORMED NAME:	UNITED STATES TRUST CO OF NEW YORK/
		DATE OF NAME CHANGE:	19990426
</SEC-HEADER>
<DOCUMENT>
<TYPE>3
<SEQUENCE>1
<FILENAME>edgar.xml
<DESCRIPTION>PRIMARY DOCUMENT
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0202</schemaVersion>

    <documentType>3</documentType>

    <periodOfReport>2005-12-16</periodOfReport>

    <noSecuritiesOwned>1</noSecuritiesOwned>

    <issuer>
        <issuerCik>0001213980</issuerCik>
        <issuerName>EXCELSIOR BUYOUT INVESTORS LLC</issuerName>
        <issuerTradingSymbol>EBI</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001085059</rptOwnerCik>
            <rptOwnerName>UNITED STATES TRUST COMPANY, N.A.</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>225 HIGH RIDGE ROAD</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>STAMFORD,</rptOwnerCity>
            <rptOwnerState>CT</rptOwnerState>
            <rptOwnerZipCode>06905</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>1</isOther>
            <otherText>Parent of Investment Adviser</otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

    <footnotes></footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>/s/ Raghav V. Nandagopal, Authorized Signatory</signatureName>
        <signatureDate>2006-08-23</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
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