"Lépin-the-Lake"; Arpitan: Lépen-le-Léc), also simply known as Lépin, is a rural commune in the Savoie department in the Auvergne-Rhône-Alpes region in Southeastern France.

It lies on the south-southwestern shore of the Lac d'Aiguebelette, one of the largest natural lakes in the area.

It is located just southwest of Aiguebelette-le-Lac, which covers part of the Chaîne de l'Épine.

On the other side of the ridge is Chambéry, 11.3 km (7 mi) east of Lépin-le-Lac.

Lépin-le-Lac is served by Lépin-le-Lac-La Bauche station on the railway line from Saint-André-le-Gaz to Chambéry.