E XHIBIT 31
 CERTIFICATION
 
 I, Walter E. Daller, Jr., Chairman, President and Chief Executive Officer, certify, that:
 
 1. I have reviewed this quarterly report on Form 10-Q of Harleysville National Corporation.
 
 2. Based on my knowledge, the quarterly 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 quarterly report;
 
 3. Based on my knowledge, the financial statements, and other financial information included in this quarterly 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 quarterly 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 we 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 quarterly 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 reasonable likely to materially affect, the registrants internal control over financial reporting; and 
  
 
 
  
 
  /s/ Walter E. Daller, Jr.
 
 
 
 1 
 CERTIFICATION
 
 I, Michael B. High, Executive Vice President and Chief Financial Officer certify, that:
 
 1. I have reviewed this quarterly report on Form 10-Q of Harleysville National Corporation.
 
 2. Based on my knowledge, the quarterly 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 quarterly report;
 
 3. Based on my knowledge, the financial statements, and other financial information included in this quarterly 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 quarterly 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 we 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 quarterly 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 reasonable likely to materially affect, the registrants internal control over financial reporting; and
 
 
  /s/ Michael B. High