The Derby Corse is a rivalry in French football between AC Ajaccio and SC Bastia, the two biggest clubs on the island of Corsica. The rivalry is intensified by the existing geographical rivalry of the island. Ajaccio is the capital of the island and largest city, as well as capital of the southern Corse-du-Sud department, while Bastia is the second city of the island and capital of the northern Haute-Corse department.