The Barguelonne (French:la Barguelonne) is a 61.2-kilometre (38.0mi) long river in the Lot, Tarn-et-Garonne and Lot-et-Garonne départements, southwestern France. Its source is near Terry, a hamlet in Pern. It flows generally southwest. It is a right tributary of the Garonne into which it flows between Golfech and Lamagistère.