Lac Mahkuatuk is a Lake located in Havre-Saint-Pierre; Minganie, Quebec.

• Latitude: 50° 34' 29'' North   (decimal: 50.5747222)
• Longitude: 63° 15' 16'' West   (decimal: -63.2544444)
• Topography Feature Category: Lake
• Geographical Feature: Lac
• Canadian Province/Territory: Quebec
• Location: Havre-Saint-Pierre; Minganie
• Atlas of Canada Locator Map: Lac Mahkuatuk
• GPS Coordinate Locator Map: Lac Mahkuatuk Lat/Long