Simard Lake is a freshwater body of the unorganized territory of Petit-Mécatina and the municipality of Kegaska, in the Le Golfe-du-Saint-Laurent Regional County Municipality, in the administrative region of Côte-Nord, in the province of Quebec, in Canada.

However, route 138 which runs along the northwest shore of the Gulf of St. Lawrence, passes 7.3 kilometres (4.5 mi) from the south bay of Lake Simard.

Lake Simard stretches like a large misshapen M overturned on the left.

Lac Simard is located north of a large swamp region that covers an area between the north shore of the Gulf of St. Lawrence and Lake Kegaska; this marsh area stretches east to the Musquaro River.

The toponym "Lac Simard" was formalized on December 5, 1968, by the Commission de toponymie du Québec.