Lac-Édouard (French pronunciation: [lak edwaʁ]) is a municipality in the Mauricie region of the province of Quebec in Canada.

The name of Lake Édouard, which was recorded since 1828 by the surveyor Joseph Bouchette, honours Native American hunter Edouard Jeannotte.

The presence of lakes and wildlife areas attracted the rich Americans and prompted the construction of the Lac-Edouard railway station in 1886, a post office and a Catholic mission in 1889.

[1] The Triton Fish and Game Club (today the Seigneurie du Triton) was the most prestigious club hunting and fishing in Quebec and received illustrious members, in particular Winston Churchill (Prime Minister of the England) and American presidents such as Theodore Roosevelt and Harry Truman, as well as family members of Rockefeller and Molson.

Tunnels built in cement were used in particular to get the pipes coming from the boiler and from raised huge reservoir of drinking water.

This infectious disease, with variable clinical signs, was once treated in sanatoriums, for cures under the sun and outdoors activities.

On the night of May 10 to 11, 2013, a fire completely destroyed the building of the house of nuns, located a few hundred metres from the sanatorium.

In 2006, businessman Jean-Guy Pronovost from Trois-Rivières acquired the site and outdoor base from Ministry of Natural Resources and Wildlife.