Gabriel Lake is a forest freshwater body in the southeastern part of the Eeyou Istchee James Bay (municipality), in Jamésie, in the administrative region of Nord-du-Québec, in the province of Quebec, in Canada.

This body of water extends in the townships of Rohault, Robert and Crisafy.

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

The Gabriel Lake includes a peninsula attached to the South shore stretching on 3.6 kilometres (2.2 mi) towards the north meaning towards the center of the lake; the bottom of this bay receives the waters of the "Lac à l'Eau Rouge", located in the South.

The toponym "lac Gabriel" was formalized on December 5, 1968, by the Commission de toponymie du Québec, when it was created.