Lac Cognac is a Lake located in Baie-James; Jamésie, Quebec and has an elevation of 496 meters.

• Latitude: 54° 56' 39'' North   (decimal: 54.9441667)
• Longitude: 70° 1' 29'' West   (decimal: -70.0247222)
• Topography Feature Category: Lake
• Geographical Feature: Lac
• Canadian Province/Territory: Quebec
• Elevation: 496 meters
• Location: Baie-James; Jamésie
• Atlas of Canada Locator Map: Lac Cognac
• GPS Coordinate Locator Map: Lac Cognac Lat/Long