The Communauté de communes Creuse Grand Sud is a communauté de communes, an intercommunal structure, in the Creuse department, in the Nouvelle-Aquitaine region, central France. It was created in January 2014 by the merger of the former communautés de communes Aubusson-Felletin and Plateau de Gentioux. Its area is 612.6 km2, and its population was 11,915 in 2018. Its seat is in Aubusson.