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

• Latitude: 55° 11' 15'' North   (decimal: 55.1875)
• Longitude: 71° 15' 23'' West   (decimal: -71.2563889)
• Topography Feature Category: Lake
• Geographical Feature: Lac
• Canadian Province/Territory: Quebec
• Location: Rivière-Koksoak; Kativik
• Atlas of Canada Locator Map: Lac Lartigue
• GPS Coordinate Locator Map: Lac Lartigue Lat/Long