Lac Cournoyer is a Lake located in Rivière-Koksoak; Kativik, Quebec.

• Latitude: 61° 18' 34'' North   (decimal: 61.3094415)
• Longitude: 73° 14' 50'' West   (decimal: -73.2472123)
• Topography Feature Category: Lake
• Geographical Feature: Lac
• Canadian Province/Territory: Quebec
• Location: Rivière-Koksoak; Kativik
• Atlas of Canada Locator Map: Lac Cournoyer
• GPS Coordinate Locator Map: Lac Cournoyer Lat/Long