Saint-Ouën-des-Vallons () is a former commune in the Mayenne department in north-western France.
From 1 January 2019 the commune was unified with Montsûrs-Saint-Céneré, Deux-Évailles and Montourtier, and the new municipality took the name of Montsûrs.Arrêté préfectoral 12 December 2018
See also
Communes of the Mayenne department
References