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

• Latitude: 56° 48' 57'' North   (decimal: 56.8159709)
• Longitude: 67° 30' 32'' West   (decimal: -67.5089937)
• Topography Feature Category: Lake
• Geographical Feature: Lac
• Canadian Province/Territory: Quebec
• Location: Rivière-Koksoak; Kativik
• Atlas of Canada Locator Map: Lac Kasakaskupasiu
• GPS Coordinate Locator Map: Lac Kasakaskupasiu Lat/Long