Attached files

file filename
10-K - 10-K - ACNB CORPa2231301z10-k.htm
EX-32.2 - EX-32.2 - ACNB CORPa2231301zex-32_2.htm
EX-32.1 - EX-32.1 - ACNB CORPa2231301zex-32_1.htm
EX-31.2 - EX-31.2 - ACNB CORPa2231301zex-31_2.htm
EX-31.1 - EX-31.1 - ACNB CORPa2231301zex-31_1.htm
EX-23 - EX-23 - ACNB CORPa2231301zex-23.htm

QuickLinks -- Click here to rapidly navigate through this document


Exhibit 21

SUBSIDIARIES OF THE REGISTRANT

        The Registrant has the following subsidiaries: ACNB Bank, a Pennsylvania state-chartered commercial bank and trust company and Russell Insurance Group, Inc., incorporated in the State of Maryland.




QuickLinks

SUBSIDIARIES OF THE REGISTRANT