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): September 18, 2003


                         ALLMERICA FINANCIAL CORPORATION
             (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 Number)



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

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







Item 9.  Regulation FD Disclosure.


     On  September  18, 2003,  Allmerica  Financial  Corporation  issued a press
release announcing that Robert P. Restrepo, Jr. has resigned as president of the
Allmerica Property and Casualty  Companies.  The release is furnished as Exhibit
99.1 hereto.



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SIGNATURES


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

                                 Allmerica Financial Corporation
                                 Registrant

                          By:    /s/ Edward J. Parry III
                                 -----------------------
                                 Edward J. Parry III
                                 Chief Financial Officer, Senior Vice President
                                 and Principal Accounting Officer




Date: September 18, 2003



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