The Inaouen River is a watercourse in Morocco. It is tributary of the Sebou River. The river rises in the Middle Atlas mountain range. A major dam, the Idriss I, was constructed on the Inaouen River in 1973.[1]
In the upper parts of the watershed within the Middle Atlas is the prehistoric range of the endangered primate Barbary macaque, which prehistorically had a much larger range in North Africa.[2]