Lake Clair (Sainte-Christine-d'Auvergne), Lac Clair (French) is located in the municipalities of Saint-Alban and Sainte-Christine-d’Auvergne, Portneuf RCM, Capitale-Nationale, Quebec, Canada.

It measures 2.7 km long by 1.8 km wide, in a forest zone, at the edge of the St. Lawrence lowlands.

Lake Clair is a residential area, not accessible to the public.

[3] The toponym "Lac Clair" was formalized on December 5, 1968, by Commission de toponymie du Québec.

[1] High-end residential and resort development around Lake Clair represents 10% of the land value of the municipality of Sainte-Christine-d’Auvergne.