Lac Antoine is a Lake located in Baie-Comeau; Manicouagan, Quebec.

• Latitude: 49° 18' 33'' North   (decimal: 49.3092139)
• Longitude: 68° 17' 21'' West   (decimal: -68.2891975)
• Topography Feature Category: Lake
• Geographical Feature: Lac
• Canadian Province/Territory: Quebec
• Location: Baie-Comeau; Manicouagan
• Atlas of Canada Locator Map: Lac Antoine
• GPS Coordinate Locator Map: Lac Antoine Lat/Long