Lac Gilles is a Lake located in Lac-Matawin; Matawinie, Quebec.

• Latitude: 46° 54' 38'' North   (decimal: 46.9105556)
• Longitude: 74° 14' 22'' West   (decimal: -74.2394443)
• Topography Feature Category: Lake
• Geographical Feature: Lac
• Canadian Province/Territory: Quebec
• Location: Lac-Matawin; Matawinie
• Atlas of Canada Locator Map: Lac Gilles
• GPS Coordinate Locator Map: Lac Gilles Lat/Long