Lac du Otter is a Lake located in Mont-Valin; Le Fjord-du-Saguenay, Quebec.

• Latitude: 50° 12' 45'' North   (decimal: 50.2125)
• Longitude: 70° 2' 51'' West   (decimal: -70.0475)
• Topography Feature Category: Lake
• Geographical Feature: Lac
• Canadian Province/Territory: Quebec
• Location: Mont-Valin; Le Fjord-du-Saguenay
• Atlas of Canada Locator Map: Lac du Otter
• GPS Coordinate Locator Map: Lac du Otter Lat/Long