<SEC-DOCUMENT>0001047469-16-015671-index.html : 20160923
<SEC-HEADER>0001047469-16-015671.hdr.sgml : 20160923
<ACCEPTANCE-DATETIME>20160923163730
ACCESSION NUMBER:		0001047469-16-015671
CONFORMED SUBMISSION TYPE:	S-3
PUBLIC DOCUMENT COUNT:		9
FILED AS OF DATE:		20160923
DATE AS OF CHANGE:		20160923

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			ION GEOPHYSICAL CORP
		CENTRAL INDEX KEY:			0000866609
		STANDARD INDUSTRIAL CLASSIFICATION:	OIL AND GAS FIELD EXPLORATION SERVICES [1382]
		IRS NUMBER:				222286646
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		S-3
		SEC ACT:		1933 Act
		SEC FILE NUMBER:	333-213769
		FILM NUMBER:		161900221

	BUSINESS ADDRESS:	
		STREET 1:		2105 CITYWEST BLVD
		STREET 2:		SUITE 400
		CITY:			HOUSTON
		STATE:			TX
		ZIP:			770422839
		BUSINESS PHONE:		281.933.3339

	MAIL ADDRESS:	
		STREET 1:		2105 CITYWEST BLVD
		STREET 2:		SUITE 400
		CITY:			HOUSTON
		STATE:			TX
		ZIP:			770422839

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	INPUT OUTPUT INC
		DATE OF NAME CHANGE:	19930328
</SEC-HEADER>
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<SEQUENCE>1
<FILENAME>a2229773zs-3.htm
<DESCRIPTION>S-3
<TEXT>
Document 1 - file: a2229773zs-3.htm

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<DOCUMENT>
<TYPE>EX-4.2
<SEQUENCE>2
<FILENAME>a2229773zex-4_2.htm
<DESCRIPTION>EX-4.2
<TEXT>
Document 2 - file: a2229773zex-4_2.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-4.3
<SEQUENCE>3
<FILENAME>a2229773zex-4_3.htm
<DESCRIPTION>EX-4.3
<TEXT>
Document 3 - file: a2229773zex-4_3.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-5.1
<SEQUENCE>4
<FILENAME>a2229773zex-5_1.htm
<DESCRIPTION>EX-5.1
<TEXT>
Document 4 - file: a2229773zex-5_1.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-12.1
<SEQUENCE>5
<FILENAME>a2229773zex-12_1.htm
<DESCRIPTION>EX-12.1
<TEXT>
Document 5 - file: a2229773zex-12_1.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-23.1
<SEQUENCE>6
<FILENAME>a2229773zex-23_1.htm
<DESCRIPTION>EX-23.1
<TEXT>
Document 6 - file: a2229773zex-23_1.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-23.2
<SEQUENCE>7
<FILENAME>a2229773zex-23_2.htm
<DESCRIPTION>EX-23.2
<TEXT>
Document 7 - file: a2229773zex-23_2.htm

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<TYPE>GRAPHIC
<SEQUENCE>8
<FILENAME>g63000.jpg
<DESCRIPTION>G63000.JPG
<TEXT>
Document 8 - file: g63000.jpg

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<TYPE>GRAPHIC
<SEQUENCE>9
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Document 9 - file: g230202.jpg

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