<SEC-DOCUMENT>0001564590-17-020827-index.html : 20171101
<SEC-HEADER>0001564590-17-020827.hdr.sgml : 20171101
<ACCEPTANCE-DATETIME>20171101170759
ACCESSION NUMBER:		0001564590-17-020827
CONFORMED SUBMISSION TYPE:	8-K
PUBLIC DOCUMENT COUNT:		5
CONFORMED PERIOD OF REPORT:	20171101
ITEM INFORMATION:		Results of Operations and Financial Condition
ITEM INFORMATION:		Financial Statements and Exhibits
FILED AS OF DATE:		20171101
DATE AS OF CHANGE:		20171101

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:		8-K
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-13754
		FILM NUMBER:		171169806

	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>8-K
<SEQUENCE>1
<FILENAME>thg-8k_20171101.htm
<DESCRIPTION>8-K
<TEXT>
Document 1 - file: thg-8k_20171101.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-99.1
<SEQUENCE>2
<FILENAME>thg-ex991_6.htm
<DESCRIPTION>EX-99.1
<TEXT>
Document 2 - file: thg-ex991_6.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-99.2
<SEQUENCE>3
<FILENAME>thg-ex992_7.htm
<DESCRIPTION>EX-99.2
<TEXT>
Document 3 - file: thg-ex992_7.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>4
<FILENAME>g2017110120513398514397.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 4 - file: g2017110120513398514397.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>5
<FILENAME>g2017110120515233113841.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 5 - file: g2017110120515233113841.jpg

</DOCUMENT>
</SEC-DOCUMENT>