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): October 25, 2002


                         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 I.D.
 tion of Incorporation)                                         Number)



               440 Lincoln Street, Worcester, Massachusetts 01653
                    (Address of Principal Executive Offices)
                                   (Zip Code)

                                 (508) 855-1000
               (Registrant's Telephone Number including area code)



                                Page 1 of 5 pages
                             Exhibit Index on page 4

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Item 5.  Other Events.

On October 25, 2002, the Board of Directors of Allmerica Financial Corporation
announced they have accepted the resignation of John F. O'Brien as President and
Chief Executive Officer, effective immediately. Mr. O'Brien will continue as a
Director of the Company and will be involved in the transition.

In addition, the Board of Directors elected Michael P. Angelini as its Chairman
and established an Office of the Chairman, comprised of Mr. Angelini, J. Kendall
Huber, Senior Vice President and General Counsel, Edward J. Parry, III, newly
appointed President of Allmerica Asset Accumulation and AFC's Chief Financial
Officer, and Robert P. Restrepo, Jr., President of Allmerica Property & Casualty
Companies.


Item 7. Financial Statements and Exhibits.

Exhibit 99        Press Release dated October 25, 2002, announcing that the
                  Board of Directors of Allmerica Financial Corporation have
                  accepted the resignation of John F. O'Brien as President and
                  Chief Executive Officer, effective immediately.


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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
                                        Senior Vice President, Chief Financial
                                        Officer and Principal Accounting Officer



Date: October 25, 2002


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Exhibit Index

Exhibit 99        Press Release dated October 25, 2002, announcing that the
                  Board of Directors of Allmerica Financial Corporation have
                  accepted the resignation of John F. O'Brien as President and
                  Chief Executive Officer, effective immediately.


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Exhibit 99


Allmerica Financial Board Announces Management Changes

WORCESTER, Mass., October 25, 2002 - The Board of Directors of Allmerica
Financial Corporation (NYSE: AFC) today announced they have accepted the
resignation of John F. O'Brien as President and Chief Executive Officer,
effective immediately. O'Brien will continue as a Director and will be involved
in the transition.

In addition, the Board of Directors elected Michael P. Angelini as its Chairman
and established an Office of the Chairman, comprised of Angelini, J. Kendall
Huber, Senior Vice President and General Counsel, Edward J. Parry, III, newly
appointed President of Allmerica Asset Accumulation and AFC's Chief Financial
Officer, and Robert P. Restrepo, Jr., President of Allmerica Property & Casualty
Companies. Angelini will continue as chairman and partner of the Worcester law
firm Bowditch & Dewey, LLP, and has been an Allmerica Director since 1984. The
Board also has established a Search Committee to select a replacement for
O'Brien. Candidates will include current members of management.

O'Brien joined Allmerica in 1989. During his tenure at Allmerica, he led the
company's successful conversion to a public company and several years of growth
in each of Allmerica's business segments. "Jack O'Brien has led Allmerica
through important changes over the past 13 years and the Board and I thank him
for his service to the company," Angelini said. More recently, the extended
decline in the equity markets has impacted Allmerica's asset accumulation
business, which has resulted in the previously announced strategic
reorganization of that business.

Allmerica Financial Corporation is the holding company for a diversified group
of insurance and financial services companies based in Worcester, Mass. The
companies provide property and casualty insurance, asset management and
retirement products and services to individual and institutional clients
throughout the country.



CONTACTS:            Media                            Investors
                     Michael F. Buckley               Henry P. St. Cyr
                     (508) 855-3099                   (508) 855-2959
                     mibuckley@allmerica.com          hstcyr@allmerica.com


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