La Seyne-sur-Mer, or simply La Seyne, is a commune in the Var department in the Provence-Alpes-Côte d'Azur region in Southeastern France. La Seyne-sur-Mer, which is part of the agglomeration of Toulon, is situated adjacent to the west of the city.
Country: France
Region: Provence-Alpes-Côte d'Azur
Area: 22.17 km² (8.56 sq mi)
Elevation: 0–352 m (0–1,155 ft) · (avg. 9 m or 30 ft)