Lac Demoiselle is a Lake located in Lac-Douaire; Antoine-Labelle, Quebec.

• Latitude: 47° 15' 15'' North   (decimal: 47.2541667)
• Longitude: 75° 52' 20'' West   (decimal: -75.8722222)
• Topography Feature Category: Lake
• Geographical Feature: Lac
• Canadian Province/Territory: Quebec
• Location: Lac-Douaire; Antoine-Labelle
• Atlas of Canada Locator Map: Lac Demoiselle
• GPS Coordinate Locator Map: Lac Demoiselle Lat/Long