Lac Deer is a Lake located in Petit-Mécatina; Minganie, Quebec.

• Latitude: 51° 40' 19'' North   (decimal: 51.6719976)
• Longitude: 57° 54' 30'' West   (decimal: -57.9082426)
• Topography Feature Category: Lake
• Geographical Feature: Lac
• Canadian Province/Territory: Quebec
• Location: Petit-Mécatina; Minganie
• Atlas of Canada Locator Map: Lac Deer
• GPS Coordinate Locator Map: Lac Deer Lat/Long