Lac Montreuil is a Lake located in Lac-Marguerite; Antoine-Labelle, Quebec.

• Latitude: 47° 4' 4'' North   (decimal: 47.0677778)
• Longitude: 75° 59' 21'' West   (decimal: -75.9891667)
• Topography Feature Category: Lake
• Geographical Feature: Lac
• Canadian Province/Territory: Quebec
• Location: Lac-Marguerite; Antoine-Labelle
• Atlas of Canada Locator Map: Lac Montreuil
• GPS Coordinate Locator Map: Lac Montreuil Lat/Long