Lac au Loup is a Lake located in Lac-Lapeyrère; Portneuf, Quebec.

• Latitude: 47° 11' 54'' North   (decimal: 47.1983333)
• Longitude: 72° 31' 17'' West   (decimal: -72.5213889)
• Topography Feature Category: Lake
• Geographical Feature: Lac
• Canadian Province/Territory: Quebec
• Location: Lac-Lapeyrère; Portneuf
• GPS Coordinate Locator Map: Lac au Loup Lat/Long