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: August 12, 2005


                                ACNB CORPORATION
             (Exact name of registrant as specified in its charter)


  Pennsylvania                          0-11783               23-2233457
----------------                    ----------------      ------------------
 (State or other                    (Commission           (IRS Employer
  jurisdiction of                   File Number)          Identification No.)
  incorporation)

 16 Lincoln Square, Gettysburg, PA                                  17325
--------------------------------------------------------------------------------
(Address of principal executive offices)                          (Zip Code)

                                 (717) 334-3161
              ----------------------------------------------------
              (Registrant's telephone number, including area code)

     Check the  appropriate  box below if the Form 8-K  filing  is  intended  to
simultaneously  satisfy the filing obligation of the registrant under any of the
following provisions (see General Instruction A.2. below):

         [ ] Written communications pursuant to Rule 425 under the Securities
             Act (17 CFR 230.425)

         [ ] Soliciting material pursuant to Rule 14a-12 under the Exchange Act
             (17 CFR 240.14a-12)

         [ ] Pre-commencement communications pursuant to Rule 14d-2(b) under the
             Exchange Act (17 CFR 240.14d-2(b))

         [ ] Pre-commencement communications pursuant to Rule 13e-4(c) under the
             Exchange Act (17 CFR 240.13e-4(c))


<PAGE>



                                ACNB CORPORATION
                           CURRENT REPORT ON FORM 8-K

         ITEM 2.02  Results of Operations and Financial Condition

         Pursuant to interim guidance issued by the Securities and Exchange
         Commission relating to Section 2 - Financial Information, the
         Corporation has furnished the information required by Item 2.02.


         ITEM 9.01 Financial Statements and Exhibits

(c)      Exhibits

         Exhibit Number    Description

         99.1              Press Release dated August 10, 2005, issued by
                           ACNB Corporation



                                    SIGNATURE

         Pursuant to the requirements of the Securities Exchange Act of 1934,
         the Registrant has duly caused this report to be signed on its behalf
         by the undersigned hereunto duly authorized.

         ACNB CORPORATION



         Date:  August 12, 2005                      BY: /s/ Thomas A. Ritter
                                                         -----------------------
                                                         Name:  Thomas A. Ritter
                                                         Title:  President/CEO
[{"type": "8-K", "sequence": "1", "filename": "acnb_8k.txt", "secsgml_size_bytes": 3168}]
{"company-data": {"conformed-name": "ACNB CORP", "cik": "0000715579", "assigned-sic": "6022", "irs-number": "232233457", "state-of-incorporation": "PA", "fiscal-year-end": "1231"}, "filing-values": {"form-type": "8-K", "act": "34", "file-number": "000-11783", "film-number": "051033050"}, "business-address": {"street1": "675 OLD HARRISBURG RD", "street2": "P O BOX 3129", "city": "GETTYSBURG", "state": "PA", "zip": "17325", "phone": "7173343161"}, "mail-address": {"street1": "P O BOX 3129", "street2": "675 OLD HARRISBURG RD", "city": "GETTYSBURG", "state": "PA", "zip": "17325"}}
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: August 12, 2005

                                ACNB CORPORATION
             (Exact name of registrant as specified in its charter)

  Pennsylvania                          0-11783               23-2233457
----------------                    ----------------      ------------------
 (State or other                    (Commission           (IRS Employer
  jurisdiction of                   File Number)          Identification No.)
  incorporation)

 16 Lincoln Square, Gettysburg, PA                                  17325
--------------------------------------------------------------------------------
(Address of principal executive offices)                          (Zip Code)

                                 (717) 334-3161
              ----------------------------------------------------
              (Registrant's telephone number, including area code)

     Check the  appropriate  box below if the Form 8-K  filing  is  intended  to
simultaneously  satisfy the filing obligation of the registrant under any of the
following provisions (see General Instruction A.2. below):

         [ ] Written communications pursuant to Rule 425 under the Securities
             Act (17 CFR 230.425)

         [ ] Soliciting material pursuant to Rule 14a-12 under the Exchange Act
             (17 CFR 240.14a-12)

         [ ] Pre-commencement communications pursuant to Rule 14d-2(b) under the
             Exchange Act (17 CFR 240.14d-2(b))

         [ ] Pre-commencement communications pursuant to Rule 13e-4(c) under the
             Exchange Act (17 CFR 240.13e-4(c))
ACNB CORPORATION
                           CURRENT REPORT ON FORM 8-K

         ITEM 2.02  Results of Operations and Financial Condition

         Pursuant to interim guidance issued by the Securities and Exchange
         Commission relating to Section 2 - Financial Information, the
         Corporation has furnished the information required by Item 2.02.

         ITEM 9.01 Financial Statements and Exhibits

(c)      Exhibits

         Exhibit Number    Description

         99.1              Press Release dated August 10, 2005, issued by
                           ACNB Corporation

                                    SIGNATURE

         Pursuant to the requirements of the Securities Exchange Act of 1934,
         the Registrant has duly caused this report to be signed on its behalf
         by the undersigned hereunto duly authorized.

         ACNB CORPORATION

         Date:  August 12, 2005                      BY: /s/ Thomas A. Ritter
                                                         -----------------------
                                                         Name:  Thomas A. Ritter
                                                         Title:  President/CEO