Penn Farms is an unincorporated community and census-designated place (CDP) in Blair County, Pennsylvania, United States.

It was first listed as a CDP prior to the 2020 census.

It is bordered to the northeast by Hollidaysburg, the county seat, and to the north by Duncansville.

Interstate 99 forms the northwestern edge of the CDP, and Pennsylvania Route 36 forms the eastern edge.

This Blair County, Pennsylvania state location article is a stub.