<SEC-DOCUMENT>0001193125-16-513505-index.html : 20160322
<SEC-HEADER>0001193125-16-513505.hdr.sgml : 20160322
<ACCEPTANCE-DATETIME>20160322163603
ACCESSION NUMBER:		0001193125-16-513505
CONFORMED SUBMISSION TYPE:	S-3ASR
PUBLIC DOCUMENT COUNT:		6
FILED AS OF DATE:		20160322
DATE AS OF CHANGE:		20160322
EFFECTIVENESS DATE:		20160322

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			HANOVER INSURANCE GROUP, INC.
		CENTRAL INDEX KEY:			0000944695
		STANDARD INDUSTRIAL CLASSIFICATION:	FIRE, MARINE & CASUALTY INSURANCE [6331]
		IRS NUMBER:				043263626
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		S-3ASR
		SEC ACT:		1933 Act
		SEC FILE NUMBER:	333-210328
		FILM NUMBER:		161521418

	BUSINESS ADDRESS:	
		STREET 1:		440 LINCOLN ST
		CITY:			WORCESTER
		STATE:			MA
		ZIP:			01653
		BUSINESS PHONE:		5088551000

	MAIL ADDRESS:	
		STREET 1:		440 LINCOLN ST
		CITY:			WORCESTER
		STATE:			MA
		ZIP:			01653

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	ALLMERICA FINANCIAL CORP
		DATE OF NAME CHANGE:	19950501
</SEC-HEADER>
<DOCUMENT>
<TYPE>S-3ASR
<SEQUENCE>1
<FILENAME>d158917ds3asr.htm
<DESCRIPTION>FORM S-3ASR
<TEXT>
Document 1 - file: d158917ds3asr.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-4.1
<SEQUENCE>2
<FILENAME>d158917dex41.htm
<DESCRIPTION>EXHIBIT 4.1
<TEXT>
Document 2 - file: d158917dex41.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-5.1
<SEQUENCE>3
<FILENAME>d158917dex51.htm
<DESCRIPTION>EXHIBIT 5.1
<TEXT>
Document 3 - file: d158917dex51.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-23.1
<SEQUENCE>4
<FILENAME>d158917dex231.htm
<DESCRIPTION>EXHIBIT 23.1
<TEXT>
Document 4 - file: d158917dex231.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>5
<FILENAME>g158917g41e09.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 5 - file: g158917g41e09.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>6
<FILENAME>g158917p93.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 6 - file: g158917p93.jpg

</DOCUMENT>
</SEC-DOCUMENT>