The Château de Commarque is a castle located between Sarlat and Les Eyzies, in the commune of Les Eyzies-de-Tayac-Sireuil in the Dordogne département, southern France. It stands on a rocky outcrop in the valley of the river Beune. The castle was founded during the 12th century, or possibly slightly prior to it, upon the request of the abbots of Sarlat.
At this time the Château de Commarque was only a wooden tower, and its primary concerns were to discourage the ambitions of the Beynac family and to insure the safety of the valley. It was placed at the crossing of two important commercial roads: the road from Périgueux to Cahors and the road from Brive-la-Gaillarde to Bergerac. It became abandoned in the XVIIth century.