-----BEGIN PRIVACY-ENHANCED MESSAGE-----
Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
Originator-Key-Asymmetric:
 MFgwCgYEVQgBAQICAf8DSgAwRwJAW2sNKK9AVtBzYZmr6aGjlWyK3XmZv3dTINen
 TWSM7vrzLADbmYQaionwg5sDW3P6oaM5D3tdezXMm7z1T+B+twIDAQAB
MIC-Info: RSA-MD5,RSA,
 LWMFYsTjeBmYRYsmwskt59Ws4eiZVfPiglZJptNIBDBo8Zr6qPcfprHd0HMvEyZw
 Gz01l7ekJAxkTBWn8kbb7Q==

<SEC-DOCUMENT>0001179110-05-011383.txt : 20050611
<SEC-HEADER>0001179110-05-011383.hdr.sgml : 20050611
<ACCEPTANCE-DATETIME>20050601152023
ACCESSION NUMBER:		0001179110-05-011383
CONFORMED SUBMISSION TYPE:	3/A
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20040213
FILED AS OF DATE:		20050601
DATE AS OF CHANGE:		20050601

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			AKSYS LTD
		CENTRAL INDEX KEY:			0000902600
		STANDARD INDUSTRIAL CLASSIFICATION:	ELECTROMEDICAL & ELECTROTHERAPEUTIC APPARATUS [3845]
		IRS NUMBER:				363890205
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		TWO MARRIOTT DR
		STREET 2:		STE 300
		CITY:			LIBERTYVILLE
		STATE:			IL
		ZIP:			60069
		BUSINESS PHONE:		8472476051

	MAIL ADDRESS:	
		STREET 1:		1113 S MILWAUKEE AVE
		STREET 2:		SUITE 300
		CITY:			LIBERTYVILLE
		STATE:			IL
		ZIP:			60048

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			KENLEY RODNEY S
		CENTRAL INDEX KEY:			0001033519

	FILING VALUES:
		FORM TYPE:		3/A
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-28290
		FILM NUMBER:		05870511

	BUSINESS ADDRESS:	
		STREET 1:		TWO MARRIOTT DRIVE
		CITY:			LINCOLNSHIRE
		STATE:			IL
		ZIP:			60069

	MAIL ADDRESS:	
		STREET 1:		TWO MARRIOTT DR
		CITY:			LINCOLNSHIRE
		STATE:			IL
		ZIP:			60069
</SEC-HEADER>
<DOCUMENT>
<TYPE>3/A
<SEQUENCE>1
<FILENAME>edgar.xml
<DESCRIPTION>FORM 3/A -
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0202</schemaVersion>

    <documentType>3/A</documentType>

    <periodOfReport>2004-02-13</periodOfReport>

    <dateOfOriginalSubmission>2004-02-13</dateOfOriginalSubmission>

    <noSecuritiesOwned>0</noSecuritiesOwned>

    <issuer>
        <issuerCik>0000902600</issuerCik>
        <issuerName>AKSYS LTD</issuerName>
        <issuerTradingSymbol>AKSY</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001033519</rptOwnerCik>
            <rptOwnerName>KENLEY RODNEY S</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>TWO MARRIOTT DRIVE</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>LINCOLNSHIRE</rptOwnerCity>
            <rptOwnerState>IL</rptOwnerState>
            <rptOwnerZipCode>60069</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>1</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle>Sr VP Advanced Prod Dev</officerTitle>
            <otherText></otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeHolding>
            <securityTitle>
                <value>Aksys, Ltd. common shares</value>
                <footnoteId id="F1"/>
            </securityTitle>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>0</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeHolding>
    </nonDerivativeTable>

    <derivativeTable></derivativeTable>

    <footnotes>
        <footnote id="F1">Original form showed 10 shares beneficially owned.  Should be zero. All other information on original form is correct.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>Rodney S. Kenley</signatureName>
        <signatureDate>2005-06-01</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
-----END PRIVACY-ENHANCED MESSAGE-----