-----BEGIN PRIVACY-ENHANCED MESSAGE-----
Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
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 TWSM7vrzLADbmYQaionwg5sDW3P6oaM5D3tdezXMm7z1T+B+twIDAQAB
MIC-Info: RSA-MD5,RSA,
 AXaixicXpEvQyttvravSyDRHmlsBZUe/6jUzH2rvlTKxNCCNVf4dbDMKyvoKZNMN
 xkDaKd24Cl0hoKckZjfbQA==

<SEC-DOCUMENT>0001140361-03-005061.txt : 20031222
<SEC-HEADER>0001140361-03-005061.hdr.sgml : 20031222
<ACCEPTANCE-DATETIME>20031222170317
ACCESSION NUMBER:		0001140361-03-005061
CONFORMED SUBMISSION TYPE:	4/A
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20030707
FILED AS OF DATE:		20031222

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			RESMED INC
		CENTRAL INDEX KEY:			0000943819
		STANDARD INDUSTRIAL CLASSIFICATION:	SURGICAL & MEDICAL INSTRUMENTS & APPARATUS [3841]
		IRS NUMBER:				980152841
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			0630

	BUSINESS ADDRESS:	
		STREET 1:		14040 DANIELSON ST
		CITY:			POWAY
		STATE:			CA
		ZIP:			920646857
		BUSINESS PHONE:		8587462400

	MAIL ADDRESS:	
		STREET 1:		14040 DANIELSON ST
		CITY:			POWAY
		STATE:			CA
		ZIP:			920646857

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			SIMPSON LOUIS A
		CENTRAL INDEX KEY:			0001085130

	FILING VALUES:
		FORM TYPE:		4/A
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-15317
		FILM NUMBER:		031068190

	BUSINESS ADDRESS:	
		STREET 1:		SAIC
		STREET 2:		10260 CAMPUS POINT DR MS F3
		CITY:			SAN DIEGO
		STATE:			CA
		ZIP:			92121
		BUSINESS PHONE:		8587593830

	MAIL ADDRESS:	
		STREET 1:		SAIC
		STREET 2:		10260 CAMPUS POINT DR MS F3
		CITY:			SAN DIEGO
		STATE:			CA
		ZIP:			92121
</SEC-HEADER>
<DOCUMENT>
<TYPE>4/A
<SEQUENCE>1
<FILENAME>doc1.xml
<DESCRIPTION>FORM 4/A
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>
    <schemaVersion>X0201</schemaVersion>

    <documentType>4/A</documentType>
<periodOfReport>2003-07-07</periodOfReport>
<dateOfOriginalSubmission>2003-07-11</dateOfOriginalSubmission>
<notSubjectToSection16>0</notSubjectToSection16>
    <issuer>
        <issuerCik>0000943819</issuerCik>
        <issuerName>RESMED INC</issuerName>
        <issuerTradingSymbol>RMD</issuerTradingSymbol>
</issuer>
<reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001085130</rptOwnerCik>
            <rptOwnerName>SIMPSON LOUIS A</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>RESMED INC.</rptOwnerStreet1>
            <rptOwnerStreet2>14040 DANIELSON STREET</rptOwnerStreet2>
            <rptOwnerCity>SAN DIEGO</rptOwnerCity>
            <rptOwnerState>CA</rptOwnerState>
            <rptOwnerZipCode>92064</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
            <reportingOwnerRelationship>
<isDirector>1</isDirector>
<isOfficer>0</isOfficer>
<isTenPercentOwner>0</isTenPercentOwner>
<isOther>0</isOther>
<officerTitle></officerTitle>
<otherText></otherText>
</reportingOwnerRelationship>
</reportingOwner>
<derivativeTable>
<derivativeTransaction>
<securityTitle>
<value>ResMed Options</value>
</securityTitle>
<conversionOrExercisePrice>
<value>39.19</value>
</conversionOrExercisePrice>
<transactionDate>
<value>2003-07-07</value>
</transactionDate>
<deemedExecutionDate>
<value>2003-07-10</value>
</deemedExecutionDate>
<transactionCoding>
<transactionFormType>4</transactionFormType>
<transactionCode>A</transactionCode>
<equitySwapInvolved>0</equitySwapInvolved>
<footnoteId id="F1"/>
</transactionCoding>
<transactionTimeliness>
<value></value>
</transactionTimeliness>
<transactionAmounts>
<transactionShares>
<value>4000</value>
<footnoteId id="F1"/>
</transactionShares>
<transactionPricePerShare>
<value>0</value>
</transactionPricePerShare>
<transactionAcquiredDisposedCode>
<value>D</value>
<footnoteId id="F1"/>
</transactionAcquiredDisposedCode>
</transactionAmounts>
<exerciseDate>
<footnoteId id="F2"/>
</exerciseDate>
<expirationDate>
<value>2013-07-06</value>
</expirationDate>
<underlyingSecurity>
<underlyingSecurityTitle>
<value>ResMed Common Stock</value>
</underlyingSecurityTitle>
<underlyingSecurityShares>
<value>4000</value>
<footnoteId id="F1"/>
</underlyingSecurityShares>
</underlyingSecurity>
<postTransactionAmounts>
<sharesOwnedFollowingTransaction>
<value>33000</value>
</sharesOwnedFollowingTransaction>
</postTransactionAmounts>
<ownershipNature>
<directOrIndirectOwnership>
<value>D</value>
</directOrIndirectOwnership>
<natureOfOwnership>
<value></value>
</natureOfOwnership>
</ownershipNature>
</derivativeTransaction>
</derivativeTable>
<footnotes>
<footnote id="F1">Non-executive Board Members agreed to waive their rights to 4,000 options beginning July 11, 2003 in exchange for an increase in aggregate compensation which was approved by the shareholders on November 13, 2003.</footnote>
<footnote id="F2">Options are exercisable 1/3 each year beginning 7/7/2004</footnote>
</footnotes>
<remarks></remarks>
<ownerSignature>
<signatureName>Louis A. Simpson</signatureName>
<signatureDate>2003-12-22</signatureDate>
</ownerSignature>
</ownershipDocument>

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