Lac Deo is a Lake located in Rouyn-Noranda; Rouyn-Noranda, Quebec.

• Latitude: 47° 44' 41'' North   (decimal: 47.7447994)
• Longitude: 78° 31' 39'' West   (decimal: -78.5275724)
• Topography Feature Category: Lake
• Geographical Feature: Lac
• Canadian Province/Territory: Quebec
• Location: Rouyn-Noranda; Rouyn-Noranda
• Atlas of Canada Locator Map: Lac Deo
• GPS Coordinate Locator Map: Lac Deo Lat/Long