Exhibit 23.1

            CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

We  hereby  consent  to the  incorporation  by  reference  in  the  Registration
Statement on Form S-8 (No.  333-576) of Allmerica  Financial  Corporation of our
report dated June 22, 2005 relating to the financial statements of The Allmerica
Financial  Employees'  401(k) Matched  Savings Plan,  which appears in this Form
11-K.

/s/ PRICEWATERHOUSECOOPERS LLP

PricewaterhouseCoopers LLP
Boston, Massachusetts
June 22, 2005