The Château d'Ochsenstein is a ruined castle located in the commune of Reinhardsmunster, in the Bas-Rhin département of France. It was home to the Ochsensteins, a powerful family from medieval Alsace. The castle sits upon three sandstone spurs and comprises three separate castles: le Grand Ochsenstein, le Petit Ochsenstein and a third building, thought to be called le Château de Wachelheim.