Lac Uspwakan is a Lake located in Baie-James; Jamésie, Quebec.

• Latitude: 54° 31' 45'' North   (decimal: 54.5291667)
• Longitude: 77° 47' 17'' West   (decimal: -77.7880556)
• Topography Feature Category: Lake
• Geographical Feature: Lac
• Canadian Province/Territory: Quebec
• Location: Baie-James; Jamésie
• Atlas of Canada Locator Map: Lac Uspwakan
• GPS Coordinate Locator Map: Lac Uspwakan Lat/Long