Lac Dey is a Lake located in Wentworth-Nord; Les Pays-d'en-Haut, Quebec and has an elevation of 369 meters.

• Latitude: 45° 50' 54'' North   (decimal: 45.8483332)
• Longitude: 74° 18' 55'' West   (decimal: -74.3152778)
• Topography Feature Category: Lake
• Geographical Feature: Étang
• Canadian Province/Territory: Quebec
• Elevation: 369 meters
• Location: Wentworth-Nord; Les Pays-d'en-Haut
• Atlas of Canada Locator Map: Lac Dey
• GPS Coordinate Locator Map: Lac Dey Lat/Long