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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,
 K7mOCce1dzQgAGsY4Yqf47IplwHBOTVPaE9hObtjsq2LVCI4iG518Q/VkvrswdXa
 n5F0QnvDnvGLiX2KTz7kAg==

<SEC-DOCUMENT>0001179110-04-011265.txt : 20040524
<SEC-HEADER>0001179110-04-011265.hdr.sgml : 20040524
<ACCEPTANCE-DATETIME>20040524124000
ACCESSION NUMBER:		0001179110-04-011265
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20040518
FILED AS OF DATE:		20040524

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			ENDOCARDIAL SOLUTIONS INC
		CENTRAL INDEX KEY:			0000940659
		STANDARD INDUSTRIAL CLASSIFICATION:	SURGICAL & MEDICAL INSTRUMENTS & APPARATUS [3841]
		IRS NUMBER:				411724963
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		1350 ENERGY LANE
		STREET 2:		STE 110
		CITY:			ST PAUL
		STATE:			MN
		ZIP:			55108
		BUSINESS PHONE:		6126447890

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			NIGON RICHARD
		CENTRAL INDEX KEY:			0001213869

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-22233
		FILM NUMBER:		04826199

	BUSINESS ADDRESS:	
		STREET 1:		C/O VASCULAR SOLUTIONS INC
		STREET 2:		2495 XENIUM LN
		CITY:			MINNEAPOLIS
		STATE:			MN
		ZIP:			55441
		BUSINESS PHONE:		7636564300

	MAIL ADDRESS:	
		STREET 1:		C/O VASCULAR SOLUTIONS INC
		STREET 2:		6464 SYCAMORE COURT NORTH
		CITY:			MINNEAPOLIS
		STATE:			MN
		ZIP:			55369
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>edgar.xml
<DESCRIPTION>FORM 4 -
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0202</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2004-05-18</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0000940659</issuerCik>
        <issuerName>ENDOCARDIAL SOLUTIONS INC</issuerName>
        <issuerTradingSymbol>ECSI</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001213869</rptOwnerCik>
            <rptOwnerName>NIGON RICHARD</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>MILLER JOHNSON STEICHEN KINNARD</rptOwnerStreet1>
            <rptOwnerStreet2>920 SECOND AVE SO</rptOwnerStreet2>
            <rptOwnerCity>MINNEAPOLIS</rptOwnerCity>
            <rptOwnerState>MN</rptOwnerState>
            <rptOwnerZipCode>55402</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle></officerTitle>
            <otherText></otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable></nonDerivativeTable>

    <derivativeTable>
        <derivativeTransaction>
            <securityTitle>
                <value>Stock Option Right to Buy</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <value>8.47</value>
            </conversionOrExercisePrice>
            <transactionDate>
                <value>2004-05-18</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>5000</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>8.47</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <exerciseDate>
                <value>2004-11-01</value>
            </exerciseDate>
            <expirationDate>
                <value>2011-05-18</value>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>5000</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>30000</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </derivativeTransaction>
    </derivativeTable>

    <footnotes></footnotes>

    <ownerSignature>
        <signatureName>Richard J. Nigon</signatureName>
        <signatureDate>2004-05-24</signatureDate>
    </ownerSignature>
</ownershipDocument>

</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
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