Deux Montagnes is French for "Two Mountains", and can represent:Lac des Deux Montagnes, a lake in the Greater Montreal Area Deux-Montagnes, Quebec, a municipality in Canada, named after the lake Deux-Montagnes Regional County Municipality, Quebec, a regional government (county) in Canada, with county seat at Deux-Montagnes Deux-Montagnes line, a former commuter train line in Greater Montreal that ends at Deux-Montagnes Deux-Montagnes station, a future train station, to be a terminus of the Réseau express métropolitain Deux-Montagnes, a Quebec provincial riding that encompasses the municipality of the same name Deux-Montagnes, a former Canadian federal riding that encompassed the municipality of the same name Argenteuil—Deux-Montagnes, a former Canadian federal riding Blainville—Deux-Montagnes, a former Canadian federal riding