Lac Usikumakw Pachistwakan is a Lake located in Baie-d'Hudson; Kativik, Quebec.

• Latitude: 55° 12' 3'' North   (decimal: 55.2008333)
• Longitude: 74° 32' 29'' West   (decimal: -74.5413889)
• Topography Feature Category: Lake
• Geographical Feature: Lac
• Canadian Province/Territory: Quebec
• Location: Baie-d'Hudson; Kativik
• Atlas of Canada Locator Map: Lac Usikumakw Pachistwakan
• GPS Coordinate Locator Map: Lac Usikumakw Pachistwakan Lat/Long