The Battle of Saint-Aubin-du-Cormier takes place on July 28, 1488, between the forces of king Charles VIII of France, and those of Francis II, Duke of Brittany and his allies.

The defeat of the latter signals the end to the "guerre folle" ('Mad war'), a feudal conflict in which French aristocrats revolt against royal power during the regency of Anne de Beaujeu.

It also effectively precipitates the end of the independence of Brittany from France.