The Chateaux de Lastours is a group of ruined castles high above the village of Lastours in the Aude department of southern France.

The four castles are called Cabaret, Surdespine, La Tour Régine and Quertinheux and are in a seemingly impregnable position, on a rocky spine, with deep ravines on either side, containing the fast flowing Grésilhou and Orbiel rivers.