Exhibit  31.1

                             HARLEYSVILLE GROUP INC.

                            CERTIFICATION PURSUANT TO
                             18 U.S.C. SECTION 1350
           AS ENACTED BY SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002

I,  M.  Lee  Patkus,  certify  that:

1.   I  have reviewed this Quarterly Report on Form 10-Q of Harleysville
     Group  Inc.;

2.   Based  on my knowledge, this report does not contain any untrue
     statement of  a  material  fact  or  omit  to  state a material fact
     necessary to make the statements  made, in light of the circumstances
     under which such statements were made,  not  misleading  with  respect
     to  the  period  covered  by this report;

3.   Based  on  my  knowledge,  the  financial statements, and other
     financial information included in this report, fairly present in all
     material respects the financial  condition,  results of operations
     and cash flows of the registrant as of,  and  for,  the  periods
     presented  in  this  report;

4.   The  registrant's  other  certifying  officer  and  I are responsible
     for establishing  and  maintaining disclosure controls and procedures
     (as defined in Exchange  Act  Rules  13a-15(e)  and  15d(e))  for
     the  registrant  and  have;

     a.   Designed  such  disclosure  controls  and procedures, or caused such
          disclosure  controls  and  procedures  to  be designed under our
          supervision, to  ensure  that  material  information  relating  to
          the registrant, including its  consolidated  subsidiaries, is made
          known to us by others within those entities,  particularly  during
          the  period  in  which  this  report  is  being  prepared;

     b.   Evaluated  the effectiveness of the registrant's disclosure controls
          and  procedures  and  presented  in  this  report  our  conclusions
          about  the  effectiveness  of  the  disclosure controls and
          procedures, as of the end of the  period  covered  by  this
          report  based  on  such  evaluation;  and

     c.   Disclosed  in  this  report  any change in the registrant's internal
          control  over  financial  reporting  that  occurred during the
          registrant's most  recent  fiscal quarter (the registrant's fourth
          fiscal quarter in the case of an  annual  report)  that  has
          materially  affected,  or  is  reasonably  likely to materially
          affect,  the registrant's internal control over financial reporting,
          and

5.   The  registrant's other certifying officer and I have disclosed, based on
     our  most recent evaluation of internal control over financial reporting,
     to the registrant's  auditors  and  the  audit  committee  of the
     registrant's board of  directors  (or  persons  performing  the  equivalent
     functions):

     a.   All  significant  deficiencies and material weaknesses in the design
          or  operation  of internal control over financial reporting which are
          reasonably  likely  to  adversely  affect  the  registrant's  ability
          to  record,  process, summarize  and  report  financial  information;
          and

     b.   Any  fraud,  whether  or  not  material, that involves management or
          other employees who have a significant role in the registrant's
          internal control  over  financial  reporting.


Date:  November  12,  2003      /s/  M.  LEE  PATKUS
       -------------------     -----------------------------------------
                               M.  Lee  Patkus
                               President  and  Chief  Operating  Officer
                               (principal  executive  officer)





Exhibit  31.2

                             HARLEYSVILLE GROUP INC.

                            CERTIFICATION PURSUANT TO
                             18 U.S.C. SECTIONS 1350
           AS ENACTED BY SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002

I,  Bruce  J.  Magee,  certify  that:

1.   I  have reviewed this Quarterly Report on Form 10-Q of Harleysville
     Group  Inc.;

2.   Based  on my knowledge, this report does not contain any untrue
     statement  of  a  material  fact  or  omit  to  state a material fact
     necessary to make the statements  made, in light of the circumstances
     under which such statements were made,  not  misleading  with  respect
     to  the  period  covered  by this report;

3.   Based  on  my  knowledge,  the  financial statements, and other
     financial information included in this report, fairly present in
     all material respects the financial  condition,  results of operations
     and cash flows of the registrant as of,  and  for,  the  periods
     presented  in  this  report;

4.   The  registrant's  other  certifying  officer  and  I are responsible
     for establishing  and  maintaining disclosure controls and procedures
     (as defined in Exchange  Act  Rules  13a-15(e)  and  15d-15(e))  for
     the  registrant and have;

     a.   Designed  such  disclosure  controls  and procedures, or caused such
          disclosure  controls  and  procedures  to  be designed under our
          supervision, to ensure  that  material  information  relating  to
          the registrant, including its consolidated  subsidiaries, is made
          known to us by others within those entities, particularly  during
          the  period  in  which  this  report  is  being  prepared;

     b.   Evaluated  the effectiveness of the registrant's disclosure controls
          and  procedures  and  presented  in  this  report  our  conclusions
          about  the effectiveness  of  the  disclosure controls and
          procedures,  as of the end of the  period  covered  by  this
          report  based  on  such  evaluation;  and

     c.   Disclosed  in  this  report  any change in the registrant's internal
          control  over  financial  reporting  that  occurred during the
          registrant's most recent  fiscal quarter (the registrant's fourth
          fiscal quarter in the case of an annual  report)  that  has
          materially  affected,  or  is  reasonably  likely to materially
          affect,  the registrant's internal control over financial
          reporting, and

5.   The  registrant's other certifying officer and I have disclosed, based on
     our  most recent evaluation of internal control over financial reporting,
     to the registrant's  auditors  and  the  audit  committee  of the
     registrant's board of directors  (or  persons  performing  the  equivalent
     functions):

     a.   All  significant  deficiencies and material weaknesses in the design
          or  operation  of internal control over financial reporting which are
          reasonably likely  to  adversely  affect  the  registrant's
          ability  to  record,  process, summarize  and  report financial
          information;  and

     b.   Any  fraud,  whether  or  not  material, that involves management or
          other employees who have a significant role in the registrant's
          internal control over  financial  reporting.


Date:   November  12,  2003     /s/  BRUCE  J.  MAGEE
        -------------------     -----------------------------
                                Bruce  J.  Magee
                                Senior  Vice  President  and
                                Chief  Financial  Officer