The Lake Omina is a freshwater body located in the northeastern part of Gouin Reservoir, in the territory of the town of La Tuque, in the administrative region of the Mauricie, in the province of Quebec, in Canada.

[2] Recreational tourism is the main economic activity in the area due to its strategic position for navigation, being located near Route 212, as well as between the village of Obedjiwan and Verreau Stream.

[3] The hydrographic slope of Lake Omina is served on the north side by road 212 connecting the village of Obedjiwan to the east shore of Gouin Reservoir; this road provides access to Toussaint Lake, the various bays on the northeast shore of Gouin Reservoir as well as the Verreau Stream area.

Some secondary forest roads have been built on the north shore of Gouin Reservoir for logging and recreational tourism activities.

The toponym "Lac Omina" was formalized on 18 December 1986 by the Commission de toponymie du Québec.