Bain-de-Bretagne (, Gallo: Bóen) is a commune in the Ille-et-Vilaine department in Brittany in northwestern France. Geography The river Semnon forms part of the commune's northern boundary. Population Inhabitants of Bain-de-Bretagne are called Bainais in French. See also Tombe à la fille Communes of the Ille-et-Vilaine department References External links Official website Mayors of Ille-et-Vilaine Association Communes of Ille-et-Vilaine