The lac Métabetchouane is a fresh body of water crossed by the Métabetchouane River, in the unorganized territory of Lac-Moncouche, in the Lac-Saint-Jean-Est Regional County Municipality, in the administrative region of Saguenay–Lac-Saint-Jean, in the province in Quebec, to Canada.

The lake Métabetchouane is indirectly served by the route 155 (connecting La Tuque and Chambord).

A few secondary forest roads serve this area for the purposes of forestry and recreational tourism activities.

The surface of Métabetchouane Lake is usually frozen from the beginning of December to the end of March, however the safe circulation on the ice is generally made from mid-December to mid-March.

While Naquagami Bay stretches for 2.0 km (1.2 mi) to the east to collect the discharge from the Métabetchouane River.