The Château de Belcastel is a medieval castle in the village and commune of Belcastel, in the Aveyron département of France. It is situated above the north bank of the Aveyron River, downstream from Rodez. The oldest part of the castle was constructed in the 9th century, and it grew in the hands of the Belcastel family. Later, for many decades, it was the seat of the famed Saunhac family. Pouillon also undertook the restoration of the village, which is now recognised with the award of the title of one of Les Plus Beaux Villages de France ("The most beautiful villages in France").