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

• Latitude: 54° 35' 56'' North   (decimal: 54.5988889)
• Longitude: 76° 40' 11'' West   (decimal: -76.6697222)
• Topography Feature Category: Lake
• Geographical Feature: Lac
• Canadian Province/Territory: Quebec
• Location: Baie-James; Jamésie
• Atlas of Canada Locator Map: Lac Uchistun
• GPS Coordinate Locator Map: Lac Uchistun Lat/Long