Alexain (French pronunciation: [alɛksɛ̃]) is a commune in the Mayenne department in northwestern France.

It is 20 km northwest of Laval and 14 km from Mayenne.

The nearest communes are La Bigottière, Placé, and Saint-Germain-d'Anxure.

The nearby Château de la Feuillée, long-term home of the d'Orenge family, was destroyed during the French Revolution and was rebuilt in 1809.

This Mayenne geographical article is a stub.