Saint-Aignan-de-Couptrain is a commune in the Mayenne department in north-western France.
The commune is made up of the following collection of villages and hamlets, La Tirehaie, La Chabossière Haute, Saint-Aignan-de-Couptrain, La Ratterie, La Gendrie, La Hérissière, La Tremblaie and La Dreurie.