Lac Forest is a Lake located in Sainte-Marcelline-de-Kildare; Matawinie, Quebec.

• Latitude: 46° 7' 44'' North   (decimal: 46.1288889)
• Longitude: 73° 36' 54'' West   (decimal: -73.6149999)
• Topography Feature Category: Lake
• Geographical Feature: Lac
• Canadian Province/Territory: Quebec
• Location: Sainte-Marcelline-de-Kildare; Matawinie
• Atlas of Canada Locator Map: Lac Forest
• GPS Coordinate Locator Map: Lac Forest Lat/Long