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

• Latitude: 54° 55' 21'' North   (decimal: 54.9225)
• Longitude: 76° 46' 34'' West   (decimal: -76.7761111)
• Topography Feature Category: Lake
• Geographical Feature: Lac
• Canadian Province/Territory: Quebec
• Location: Baie-James; Jamésie
• Atlas of Canada Locator Map: Lac Denys
• GPS Coordinate Locator Map: Lac Denys Lat/Long