Lac de Tseuzier is an artificial lake in the canton of Valais, Switzerland.

It is located in the municipalities of Ayent and Icogne.

The reservoir has a volume of 51 mio m³ and a surface area of 0.85 km2 (0.33 sq mi).

It was formed by the dams of Zeuzier (156 m) and Proz-Riond (20 m) built in 1957.

This article related to a lake in Valais is a stub.