Montreuil-sur-Ille , literally Montreuil on Ille; Breton: Mousterel-an-Il; Gallo: Móstroelh] is a commune in the Ille-et-Vilaine department of Brittany in northwestern France.
Ille-sur-Têt ; Catalan: Illa or Illa de Tet] is a commune in the Pyrénées-Orientales département in southern France. Its inhabitants are called Illois.
Saint-Germain-sur-Ille , literally Saint-Germain on Ille; Breton: Sant-Jermen-an-Il] is a commune in the Ille-et-Vilaine department of Brittany in northwestern France.
Saint-Médard-sur-Ille , literally Saint-Médard on Ille; Breton: Sant-Marzh-an-Il] is a commune in the Ille-et-Vilaine department in Brittany in northwestern France.