Langhorne Library in Langhorne, Pennsylvania, is a historic Victorian Romanesque Revival building erected in 1888 and part of the Langhorne Historic District. Noted for its cruciform plan, one-and-three-quarter-story brick construction, steep slate-covered hipped roof, cross-gable entrance, and terra cotta detailing, it remains one of the town’s distinctive historic structures. It served as the public library until the 1970s, when it became home to the Historic Langhorne Association. Since then, it has continued as a museum and local history reference library. Its significance is recognized by its listing on the National Register of Historic Places since 1986.