<SEC-DOCUMENT>0001104659-18-008037-index.html : 20180209
<SEC-HEADER>0001104659-18-008037.hdr.sgml : 20180209
<ACCEPTANCE-DATETIME>20180209154745
ACCESSION NUMBER:		0001104659-18-008037
CONFORMED SUBMISSION TYPE:	S-8
PUBLIC DOCUMENT COUNT:		5
FILED AS OF DATE:		20180209
DATE AS OF CHANGE:		20180209
EFFECTIVENESS DATE:		20180209

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			OSI SYSTEMS INC
		CENTRAL INDEX KEY:			0001039065
		STANDARD INDUSTRIAL CLASSIFICATION:	SEMICONDUCTORS & RELATED DEVICES [3674]
		IRS NUMBER:				330238801
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			0630

	FILING VALUES:
		FORM TYPE:		S-8
		SEC ACT:		1933 Act
		SEC FILE NUMBER:	333-222956
		FILM NUMBER:		18591520

	BUSINESS ADDRESS:	
		STREET 1:		12525 CHADRON AVE
		CITY:			HAWTHORNE
		STATE:			CA
		ZIP:			90250
		BUSINESS PHONE:		3109780516

	MAIL ADDRESS:	
		STREET 1:		12525 CHADRON AVENUE
		CITY:			HAWTHORNE
		STATE:			CA
		ZIP:			90250
</SEC-HEADER>
<DOCUMENT>
<TYPE>S-8
<SEQUENCE>1
<FILENAME>a18-5597_1s8.htm
<DESCRIPTION>S-8
<TEXT>
Document 1 - file: a18-5597_1s8.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-5.1
<SEQUENCE>2
<FILENAME>a18-5597_1ex5d1.htm
<DESCRIPTION>EX-5.1
<TEXT>
Document 2 - file: a18-5597_1ex5d1.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-23.2
<SEQUENCE>3
<FILENAME>a18-5597_1ex23d2.htm
<DESCRIPTION>EX-23.2
<TEXT>
Document 3 - file: a18-5597_1ex23d2.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>4
<FILENAME>g55971kii001.gif
<DESCRIPTION>GRAPHIC
<TEXT>
Document 4 - file: g55971kii001.gif

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>5
<FILENAME>g55971kii002.gif
<DESCRIPTION>GRAPHIC
<TEXT>
Document 5 - file: g55971kii002.gif

</DOCUMENT>
</SEC-DOCUMENT>