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

• Latitude: 56° 18' 59'' North   (decimal: 56.3163889)
• Longitude: 67° 54' 33'' West   (decimal: -67.9091667)
• Topography Feature Category: Lake
• Geographical Feature: Lac
• Canadian Province/Territory: Quebec
• Location: Rivière-Koksoak; Kativik
• Atlas of Canada Locator Map: Lac Bertin
• GPS Coordinate Locator Map: Lac Bertin Lat/Long