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

• Latitude: 55° 37' 23'' North   (decimal: 55.6230556)
• Longitude: 71° 47' 15'' West   (decimal: -71.7875)
• Topography Feature Category: Lake
• Geographical Feature: Lac
• Canadian Province/Territory: Quebec
• Location: Rivière-Koksoak; Kativik
• Atlas of Canada Locator Map: Lac Gancleau
• GPS Coordinate Locator Map: Lac Gancleau Lat/Long