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

• Latitude: 57° 15' 13'' North   (decimal: 57.2534788)
• Longitude: 68° 46' 6'' West   (decimal: -68.7682077)
• Topography Feature Category: Lake
• Geographical Feature: Lac
• Canadian Province/Territory: Quebec
• Location: Rivière-Koksoak; Kativik
• Atlas of Canada Locator Map: Lac Gillet
• GPS Coordinate Locator Map: Lac Gillet Lat/Long