The Calavon (French: le Calavon, also called le Coulon) is an 88.3-kilometre (54.9 mi) long river in the Alpes-de-Haute-Provence and Vaucluse départements, southeastern France. Its source is near Banon. It flows generally west-southwest. It is a right tributary of the Durance into which it flows at Caumont-sur-Durance, near Cavaillon.