Barry Lake is a body of freshwater in the north-eastern part of Senneterre in the La Vallée-de-l'Or Regional County Municipality (RCM), in the administrative region of Abitibi-Témiscamingue, in the province of Quebec, in Canada.

Forestry is the main economic activity of the sector.

The lake Barry watershed is accessible via a forest road (North-South direction) on the east side of the Saint-Cyr River Valley; in addition, another forest road (East-West direction) serves the northern part of the [Barry Lake Biodiversity Reserve] and connects the R1015 road west.

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

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