蒙特勒伊

Montreuil-sur-Mer (French pronunciation: ​[mɔ̃tʁœj syʁ mɛʁ]; Dutch: Monsterole) is a sub-prefecture in the Pas-de-Calais department in northern France. It is located on the Canche river, not far from Étaples. The sea, however, is now some distance away.

The Communauté d'agglomération des Deux Baies en Montreuillois is a communauté d'agglomération, an intercommunal structure, in the Pas-de-Calais department, in the Hauts-de-France region, northern France. It was created in January 2017 by the merger of the former communautés de communes Montreuillois, Opale Sud and Mer et Terres d'Opale.

The canton of Montreuil is a former canton in the Pas-de-Calais department and the Nord-Pas de Calais region. It was disbanded following the French canton reorganisation that came into effect in March 2015.

Montreuil-sur-Mer station (Gare de Montreuil-sur-Mer) is a railway station on the line from Arras to Étaples via Saint-Pol-sur-Ternoise. It is located in the commune of Montreuil-sur-Mer in the Pas-de-Calais department, France. The station is served by TER Hauts-de-France buses between Étaples-Le Touquet and Saint-Pol-sur-Ternoise.