UNITED STATES
                       SECURITIES AND EXCHANGE COMMISSION
                             WASHINGTON, D.C. 20549


                                    FORM 8-K

                                 CURRENT REPORT
     Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934


       Date of Report (Date of earliest event reported): May 16, 2006


                         THE HANOVER INSURANCE GROUP, INC.
                         ---------------------------------

             (Exact name of registrant as specified in its charter)


           Delaware                   1-13754                 04-3263626
   ------------------------    ------------------------   --------------------
  (State or other jurisdic-    (Commission File Number)    (I.R.S. Employer
   tion of incorporation)                                   Identification No.)



               440 Lincoln Street, Worcester, Massachusetts 01653
               --------------------------------------------------
                    (Address of principal executive offices)
                                   (Zip Code)


       Registrant's telephone number, including area code: (508) 855-1000



Check  the  appropriate  box  below  if the  Form  8-K  filing  is  intended  to
simultaneously  satisfy the filing obligation of the registrant under any of the
following provisions:

[    ] Written communications  pursuant to Rule 425 under the Securities Act
       (17 CFR 230.425)

[    ] Soliciting material pursuant to Rule 14a-12 under the Exchange Act
       (17CFR 240.14a-12)

[    ]  Pre-commencement  communications  pursuant  to Rule  14d-2(b)  under the
        Exchange Act (17CFR 240.14d-2(b))

[    ]  Pre-commencement  communications  pursuant  to Rule  13e-4(c)  under the
        Exchange Act (17CFR 240.13e-4(c))




Item 1.01         Entry into a Material Definitive Agreement.

2006 Long-Term Incentive Plan

On March 7, 2006, the Board of Directors of The Hanover  Insurance  Group,  Inc.
(the "Company")  approved the Company's 2006 Long-Term Incentive Plan (the "2006
Plan"),  subject to approval by the Company's  shareholders.  In accordance with
the listing  standards of the New York Stock Exchange,  the  shareholders of the
Company approved the 2006 Plan on May 16,  2006, at the Company's Annual Meeting
of  Shareholders.  A copy of the  2006  Plan  was  filed  as  Appendix  I to the
Company's  Definitive  Proxy  Statement  filed with the  Securities and Exchange
Commission  on April 3, 2006 (the "2006 Proxy  Statement")  and is  incorporated
herein by reference.  The following summary is qualified in its entirety by, and
should be read in conjunction with, the 2006 Plan.

The 2006 Plan authorizes the issuance of three million (3,000,000) new shares of
the Company's  Common Stock that may be used for awards under the plan. The 2006
Plan also provides that shares (i) underlying any awards granted and outstanding
under the Company's  Amended  Long-Term  Stock  Incentive Plan (the "1996 Plan")
that are forfeited or canceled,  or expire or terminate,  after May 16, 2006, or
(ii) outstanding as of May 16, 2006 in the form of restricted stock awards under
the 1996 Plan that are thereafter reacquired or repurchased by the Company prior
to vesting,  will become  available for future  grants under the 2006 Plan.  The
Company  will not grant  further  awards  under  the 1996  Plan,  and,  with the
exception of shares granted  during May 2006,  will not grant any further awards
under its Amended and Restated Non-Employee Director Stock Ownership Plan.

Subject to the  limitations  contained  therein,  the 2006 Plan provides for the
grant of incentive  stock  options  intended to qualify under Section 422 of the
Internal Revenue Code ("ISOs"),  non-statutory stock options, stock appreciation
rights  ("SARs"),  restricted  or  unrestricted  stock,  stock units  (including
restricted stock units), performance awards or other awards that are convertible
into or otherwise  based on the Company's  common stock.  The maximum  number of
shares of common stock  delivered in  satisfaction  of awards other than options
cannot  exceed 50% of the  maximum  number of shares  that may be  delivered  in
satisfaction  of awards made under the 2006 Plan. The 2006 Plan is  administered
by the  Compensation  Committee of the Board (or its  designee),  which also has
authority to  interpret  the terms of the 2006 Plan.  Participation  in the 2006
Plan is limited to those key employees and  directors,  as well as  consultants,
advisors  and  other  persons   providing   services  to  the  Company  and  its
subsidiaries,  who in the Compensation  Committee's opinion are in a position to
make a  contribution  to the success of the Company  and its  subsidiaries.  The
group of persons from which the Compensation  Committee may select  participants
currently  consists of approximately 300 individuals,  although the Compensation
Committee  may increase  that number from time to time.  No award of ISOs may be
made under the 2006 Plan after May 16, 2016, but awards  previously  granted may
extend beyond that date. The  Compensation  Committee (or its designee)  selects
the  recipients of awards under the 2006 Plan and  determines  (i) the number of
shares of common stock  covered by options and the dates upon which such options
become  exercisable,  (ii) the exercise  price of options (which may not be less
than 100% of fair market value of our common stock on the date of grant),  (iii)
the  duration of options  (which may not exceed 10 years) and (iv) the number of
shares of common stock subject to any SAR,  restricted  stock award,  restricted
stock unit award or other  stock-based  awards and the terms and  conditions  of
such awards, including, if applicable,  conditions for forfeiture or repurchase,
the issue price,  the grant or exercise price (which in the case of SARs may not
be less  than  100% of the  fair  market  value  of our  common  stock)  and the
repurchase price.

Additional  details  regarding the description of the 2006 Plan are set forth in
the 2006 Proxy Statement and are incorporated herein by reference.

Compensation for Non-Employee Directors

Upon recommendation of the Compensation  Committee,  the Board of Directors at a
meeting  held  on  May  16,  2006,  voted  to  establish  the  compensation  for
non-employee  directors  for the  2006-2007  board year, to be effective for the
period beginning  immediately  following the 2006 Annual Meeting of Shareholders
(held on May 16, 2006) until the 2007 Annual Meeting of Shareholders.  A summary
of the Company's non-employee director compensation for the 2006-2007 board year
is set forth on  Exhibit 10.2  attached  hereto  and is  incorporated  herein by
reference.  Directors  who are  employees  of the  Company  or its  subsidiaries
receive no additional compensation for their services as members of the Board.


Item 9.01         Financial Statements and Exhibits.

(a) Not applicable

(b) Not applicable

(c) Not applicable

(d) Exhibits

The following exhibits are filed herewith.

Exhibit 10.1    The Hanover Insurance Group, Inc. 2006 Long-Term Incentive
                Plan originally filed as Appendix I to the Company's Definitive
                Proxy Statement filed with the Securities and Exchange
                Commission on April 3, 2006, and incorporated herein by
                reference

Exhibit 10.2    Description of 2006-2007 Non-Employee Director Compensation



                                      2




                                   SIGNATURES


Pursuant  to the  requirements  of the  Securities  Exchange  Act of  1934,  the
registrant  has duly  caused  this  report  to be  signed  on its  behalf by the
undersigned hereunto duly authorized.

                                     The Hanover Insurance Group, Inc.
                                     ---------------------------------

                                     (Registrant)


Date: May 19, 2006           By: /s/ J.Kendall Huber
                                     -----------------------
                                     J. Kendall Huber
                                     Senior Vice President,
                                     and General Counsel


                                       3