Chevrillon Lake is a freshwater body crossed by the Chibougamau River, in the southern part of Eeyou Istchee James Bay (municipality), in the administrative region of Nord-du-Québec, in the province of Quebec, in Canada.

The lake is part of the townships of Vienna, Barlow, Blaiklock and McKenzie.

The surface of Chevrillon Lake is usually frozen from early November to mid-May, however safe ice circulation is generally from mid-November to mid-April.

The mouth of Lac Chevrillon is located at the bottom of a bay on the west side where there are several islands, namely: The main hydrographic slopes near Lac Chevrillon are: Formerly, this name has been designated "Lake Rush" and "Lake Rush".

The toponym "Lac Chevrillon" was officialized on December 5, 1968 by the Commission de toponymie du Québec when it was created.