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

• Latitude: 50° 16' 18'' North   (decimal: 50.2717335)
• Longitude: 70° 24' 32'' West   (decimal: -70.4090072)
• Topography Feature Category: Lake
• Geographical Feature: Lac
• Canadian Province/Territory: Quebec
• Location: Mont-Valin; Le Fjord-du-Saguenay
• Atlas of Canada Locator Map: Lac Sifflet
• GPS Coordinate Locator Map: Lac Sifflet Lat/Long