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

• Latitude: 61° 18' 0'' North   (decimal: 61.3000017)
• Longitude: 73° 27' 21'' West   (decimal: -73.4558247)
• Topography Feature Category: Lake
• Geographical Feature: Lac
• Canadian Province/Territory: Quebec
• Location: Rivière-Koksoak; Kativik
• Atlas of Canada Locator Map: Lac Qangattajuuq
• GPS Coordinate Locator Map: Lac Qangattajuuq Lat/Long