This is a list of lakes in the Ain department on the eastern edge of France.

Lac de Barterand, a lake in Pollieu

Lac de Chailloux, a small lake at Contrevoz

Lac de Chavoley, a lake at Ceyzérieu

Lac de Coiselet, a reservoir

Lac de Conflans, a lake at the confluence of the rivers Ain and Valouse

Lacs de Conzieu, a group of three small lakes at Conzieu

Lac de Crotel, a lake at Groslée

Lac de Divonne, an artificial lake at Divonne-les-Bains

Lac de Glandieu

Lacs des Hôpitaux, a pair of lakes at La Burbanche

Lac de Morgnieu, a lake at Ceyzérieu

Lac de Nantua, a lake located between Nantua, Montreal-la-Cluse, and Port

Lac de Sylans, a lake at Le Poizat

Lac de Virieu, a lake at Virieu-le-Grand

Lac Genin, a lake fed by underground sources

List of lakes of Ain, France