San Pietro in Valle is a medieval abbey in the comune (township) of Ferentillo in Umbria.
The Romanesque church houses some particularly fine Roman sarcophagi; the walls of the nave are decorated with a large cycle of good Romanesque frescoes. The monastery buildings are private property and today house a luxury hotel.
Coordinates: 42°38′43″N 12°48′41″E / 42.6454°N 12.8115°E