Lac Guest is a Lake located in La Tuque; Le Haut-Saint-Maurice, Quebec.

• Latitude: 47° 31' 4'' North   (decimal: 47.5178297)
• Longitude: 73° 47' 31'' West   (decimal: -73.7920738)
• Topography Feature Category: Lake
• Geographical Feature: Lac
• Canadian Province/Territory: Quebec
• Location: La Tuque; Le Haut-Saint-Maurice
• Atlas of Canada Locator Map: Lac Guest
• GPS Coordinate Locator Map: Lac Guest Lat/Long