Lac Island is a Lake located in Lac-Pythonga; La Vallée-de-la-Gatineau, Quebec.

• Latitude: 47° 10' 49'' North   (decimal: 47.1802778)
• Longitude: 76° 40' 53'' West   (decimal: -76.6813889)
• Topography Feature Category: Lake
• Geographical Feature: Lac
• Canadian Province/Territory: Quebec
• Location: Lac-Pythonga; La Vallée-de-la-Gatineau
• GPS Coordinate Locator Map: Lac Island Lat/Long