<SEC-DOCUMENT>0001047469-15-009103-index.html : 20151208
<SEC-HEADER>0001047469-15-009103.hdr.sgml : 20151208
<ACCEPTANCE-DATETIME>20151208170148
ACCESSION NUMBER:		0001047469-15-009103
CONFORMED SUBMISSION TYPE:	PRE 14A
PUBLIC DOCUMENT COUNT:		7
CONFORMED PERIOD OF REPORT:	20160201
FILED AS OF DATE:		20151208
DATE AS OF CHANGE:		20151208

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:		PRE 14A
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-12691
		FILM NUMBER:		151276278

	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>
<DOCUMENT>
<TYPE>PRE 14A
<SEQUENCE>1
<FILENAME>a2226813zpre14a.htm
<DESCRIPTION>PRE 14A
<TEXT>
Document 1 - file: a2226813zpre14a.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>2
<FILENAME>g58875.jpg
<DESCRIPTION>G58875.JPG
<TEXT>
Document 2 - file: g58875.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>3
<FILENAME>g262491.jpg
<DESCRIPTION>G262491.JPG
<TEXT>
Document 3 - file: g262491.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>4
<FILENAME>g923564.jpg
<DESCRIPTION>G923564.JPG
<TEXT>
Document 4 - file: g923564.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>5
<FILENAME>g904494.jpg
<DESCRIPTION>G904494.JPG
<TEXT>
Document 5 - file: g904494.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>6
<FILENAME>g246772bgi001.gif
<DESCRIPTION>G246772BGI001.GIF
<TEXT>
Document 6 - file: g246772bgi001.gif

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>7
<FILENAME>g246772bgi002.gif
<DESCRIPTION>G246772BGI002.GIF
<TEXT>
Document 7 - file: g246772bgi002.gif

</DOCUMENT>
</SEC-DOCUMENT>