Achepabanca Lake is a freshwater body crossed by the Achepabanca River, in the north-eastern part of Senneterre, within 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 hydrographic slope of Achepabanca Lake is accessible via a forest road (east-west) that passes on the north side of Achepabanca Lake, passing through the Lake Wetetnagami Biodiversity Reserve; in addition, another forest road (East-West direction) serves the southern part of this Reserve and the western side of Lake Achepabanca.

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

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