Champagnac may refer to the following communes in France:

• Champagnac, Cantal, in the Cantal département
• Champagnac, Charente-Maritime, in the Charente-Maritime département
• Champagnac-de-Belair, in the Dordogne département
• Champagnac-la-Noaille, in the Corrèze département
• Champagnac-la-Prune, in the Corrèze département
• Champagnac-la-Rivière, in the Haute-Vienne département
• Champagnac-le-Vieux, in the Haute-Loire département