Lac Voisin is a Lake located in Rivière-Mistassini; Maria-Chapdelaine, Quebec and has an elevation of 488 meters.

• Latitude: 50° 23' 9'' North   (decimal: 50.3858333)
• Longitude: 72° 55' 55'' West   (decimal: -72.9319444)
• Topography Feature Category: Lake
• Geographical Feature: Lac
• Canadian Province/Territory: Quebec
• Elevation: 488 meters
• Location: Rivière-Mistassini; Maria-Chapdelaine
• Atlas of Canada Locator Map: Lac Voisin
• GPS Coordinate Locator Map: Lac Voisin Lat/Long