Lac Désy is a Lake located in Lac-Normand; Mékinac, Quebec and has an elevation of 403 meters.

• Latitude: 46° 59' 32'' North   (decimal: 46.9922222)
• Longitude: 73° 20' 42'' West   (decimal: -73.345)
• Topography Feature Category: Lake
• Geographical Feature: Lac
• Canadian Province/Territory: Quebec
• Elevation: 403 meters
• Location: Lac-Normand; Mékinac
• Atlas of Canada Locator Map: Lac Désy
• GPS Coordinate Locator Map: Lac Désy Lat/Long