Lac du Roi is a Lake located in Saint-Paulin; Maskinongé, Quebec.

• Latitude: 46° 28' 49'' North   (decimal: 46.4802777)
• Longitude: 73° 0' 59'' West   (decimal: -73.0163888)
• Topography Feature Category: Lake
• Geographical Feature: Lac
• Canadian Province/Territory: Quebec
• Location: Saint-Paulin; Maskinongé
• Atlas of Canada Locator Map: Lac du Roi
• GPS Coordinate Locator Map: Lac du Roi Lat/Long