Mahaffey is a borough in Clearfield County, Pennsylvania, United States.

The borough was founded by Robert Mahaffey in 1841, at a point where Chest Creek flows into the West Branch Susquehanna River.

At the time it had a public school, four churches, a grist mill and a tannery.

McGees Mills Covered Bridge is located west of Mahaffey on U.S. Route 219 in Bell Township.

It is one of the few remaining covered bridges in Pennsylvania, and is listed on the National Register of Historic Places.