    <SEC-DOCUMENT>0001193125-18-091327-index.html : 20180322
    <SEC-HEADER>0001193125-18-091327.hdr.sgml : 20180322
    <ACCEPTANCE-DATETIME>20180322070501
    ACCESSION NUMBER:		0001193125-18-091327
    CONFORMED SUBMISSION TYPE:	DEF 14A
    PUBLIC DOCUMENT COUNT:		7
    CONFORMED PERIOD OF REPORT:	20180509
    FILED AS OF DATE:		20180322
    DATE AS OF CHANGE:		20180322
    EFFECTIVENESS DATE:		20180322

    FILER:

    	COMPANY DATA:
    		COMPANY CONFORMED NAME:			INNOSPEC INC.
    		CENTRAL INDEX KEY:			0001054905
    		STANDARD INDUSTRIAL CLASSIFICATION:	CHEMICALS & ALLIED PRODUCTS [2800]
    		IRS NUMBER:				981081725
    		STATE OF INCORPORATION:			DE
    		FISCAL YEAR END:			1231

    	FILING VALUES:
    		FORM TYPE:		DEF 14A
    		SEC ACT:		1934 Act
    		SEC FILE NUMBER:	001-13879
    		FILM NUMBER:		18705686

    	BUSINESS ADDRESS:
    		STREET 1:		8310 SOUTH VALLEY HIGHWAY
    		STREET 2:		SUITE 350
    		CITY:			ENGLEWOOD
    		STATE:			CO
    		ZIP:			80112
    		BUSINESS PHONE:		303-566-0528

    	MAIL ADDRESS:
    		STREET 1:		8310 SOUTH VALLEY HIGHWAY
    		STREET 2:		SUITE 350
    		CITY:			ENGLEWOOD
    		STATE:			CO
    		ZIP:			80112

    	FORMER COMPANY:
    		FORMER CONFORMED NAME:	OCTEL CORP
    		DATE OF NAME CHANGE:	19980209
    </SEC-HEADER>
    <DOCUMENT>
    <TYPE>DEF 14A
    <SEQUENCE>1
    <FILENAME>d518116ddef14a.htm
    <DESCRIPTION>DEF 14A
    <TEXT>
    Document 1 - file: d518116ddef14a.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>2
    <FILENAME>g518116g07x12.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 2 - file: g518116g07x12.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>3
    <FILENAME>g518116g63e69.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 3 - file: g518116g63e69.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>4
    <FILENAME>g518116g64v19.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 4 - file: g518116g64v19.jpg

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    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>5
    <FILENAME>g518116g67i17.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 5 - file: g518116g67i17.jpg

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    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>6
    <FILENAME>g518116g71e24.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 6 - file: g518116g71e24.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>7
    <FILENAME>g518116g88z39.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 7 - file: g518116g88z39.jpg

    </DOCUMENT>
    </SEC-DOCUMENT>