Lac du Verney is an artificial reservoir in the department of Isère, in the Rhône-Alpes of France. It serves as the lower reservoir for the Grand'Maison Dam pumped-storage scheme.

Lac du Verney
Lac du Verney
Lac du Verney is located in France
Lac du Verney
Lac du Verney
LocationFrance
Coordinates45°08′20″N 6°02′50″E / 45.138889°N 6.047222°E / 45.138889; 6.047222
Typereservoir
Primary inflowsL'Eau d'Olle, & other small streams
Primary outflowsRiver Romanche
Basin countriesIsère, (Rhône-Alpes)

Neighbouring lakeside communities include Oz and Allemond.

Since 2006 it has hosted the opening swim of the Alpe d'Huez Triathlon.

Dam wall of the Lac du Verney