The Château de Montbéliard (Montbeliard Castle), also known as the Château des ducs de Württemberg (Castle of the Dukes of Württemberg) is a fortress located on an outcropping rock that overlookss the town of Montbéliard in the Doubs département of France. Since 1996, it has been classified as a monument historique by the French Ministry of Culture. The property of the commune, it is open to the public.