Pont-Saint-Martin (Valdôtain: Pón-Sèn-Marteun or Pón-Sén-Martìn; Walser: Martinstäg or Steg); Piedmontese: Pont San Martìn) is a town and comune in the Aosta Valley region of northwest Italy. It is home to the notable Roman bridge of the same name, and to two ruined medieval castles (Castle of Pont-Saint-Martin and Castle of Suzey). The communal territory is crossed by the Dora Baltea river and has its highest peak at the Bec di Nona mountain, elevation 2085m.
