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

Recreational tourism is the primary economic activity in the area with forestry as secondary.

The main hydrographic slopes near Lake Simard are: With a length of 4.2 kilometres (2.6 mi) (with a deformed outline and several bays, islands and peninsulas), Lake Simard stretches in the North-South direction.

This lake is mainly fed by the Piponisiw River, coming from the North.

On the west side, a mountain peak rises to an altitude of 505 metres (1,657 ft) at 2.0 kilometres (1.2 mi) from the shore of the lake.