EX-99.906CERT

         CERTIFICATION PURSUANT TO SECTION 906 OF THE SARBANES-OXLEY ACT

I, Bruce N. Alpert, Principal Executive Officer & Principal Financial Officer of
Gabelli Equity Series Funds, Inc. (the "Registrant"), certify that:

         1.     The Form N-CSR of the Registrant  (the "Report")  fully complies
                with  the   requirements  of  Section  13(a)  or  15(d)  of  the
                Securities Exchange Act of 1934, as amended; and

         2.     The information  contained in the Report fairly presents, in all
                material  respects,  the  financial  condition  and  results  of
                operations of the Registrant.

Date:    12/5/2003      /s/ Bruce N. Alpert
      ----------------  --------------------------------------------------------
                        Bruce N. Alpert, Principal Executive Officer & Principal
                        Financial Officer