William T. Piper Memorial Airport (IATA: LHV, ICAO: KLHV, FAA LID: LHV) is a city-owned public airport two miles east of Lock Haven, in Clinton County, Pennsylvania. The National Plan of Integrated Airport Systems for 2011–2015 categorized it as a general aviation facility.

Named for William T. Piper, the airport is at the foot of the Bald Eagle Mountain ridge, between the West Branch Susquehanna River and Bald Eagle Creek. It covers 112 acres (45 ha), has two runways and is operated by the City of Lock Haven.