<SEC-DOCUMENT>0000935494-14-000022-index.html : 20140805
<SEC-HEADER>0000935494-14-000022.hdr.sgml : 20140805
<ACCEPTANCE-DATETIME>20140805164845
ACCESSION NUMBER:		0000935494-14-000022
CONFORMED SUBMISSION TYPE:	S-8
PUBLIC DOCUMENT COUNT:		4
FILED AS OF DATE:		20140805
DATE AS OF CHANGE:		20140805
EFFECTIVENESS DATE:		20140805

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			NATIONAL INSTRUMENTS CORP /DE/
		CENTRAL INDEX KEY:			0000935494
		STANDARD INDUSTRIAL CLASSIFICATION:	SERVICES-PREPACKAGED SOFTWARE [7372]
		IRS NUMBER:				741871327
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		S-8
		SEC ACT:		1933 Act
		SEC FILE NUMBER:	333-197878
		FILM NUMBER:		141016751

	BUSINESS ADDRESS:	
		STREET 1:		11500 NORTH MOPAC EXPRESSWAY
		CITY:			AUSTIN
		STATE:			TX
		ZIP:			78759
		BUSINESS PHONE:		5123389119

	MAIL ADDRESS:	
		STREET 1:		11500 NORTH MOPAC EXPRESSWAY
		CITY:			AUSTIN
		STATE:			TX
		ZIP:			78759
</SEC-HEADER>
<DOCUMENT>
<TYPE>S-8
<SEQUENCE>1
<FILENAME>form_s8-espp2014.htm
<DESCRIPTION>FORM S-8 2014
<TEXT>
Document 1 - file: form_s8-espp2014.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-5.1
<SEQUENCE>2
<FILENAME>exhibit5-1wsgr_opinion.htm
<DESCRIPTION>EXHIBIT 5.1 OPINION OF WSGR
<TEXT>
Document 2 - file: exhibit5-1wsgr_opinion.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-23.1
<SEQUENCE>3
<FILENAME>ey_consent.htm
<DESCRIPTION>EXHIBIT 23.1 CONSENT OF E&Y
<TEXT>
Document 3 - file: ey_consent.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>4
<FILENAME>wilsonlogo.jpg
<TEXT>
Document 4 - file: wilsonlogo.jpg

</DOCUMENT>
</SEC-DOCUMENT>