The Château des Rohan ("Castle of the Rohan") is a former castle and weapons factory now serving as a museum and cultural centre in the French town of Mutzig, Bas-Rhin, Alsace. The castle, whose structure goes back to the 13th century, belonged to several families of noblemen and bishops of Strasbourg before being turned into a rifle factory after the French Revolution. The castle is most famously associated with the House of Rohan and the Chassepot rifle.