Lac Sombre is a Lake located in L'Anse-Saint-Jean; Le Fjord-du-Saguenay, Quebec.

• Latitude: 48° 6' 15'' North   (decimal: 48.1041929)
• Longitude: 70° 15' 5'' West   (decimal: -70.2514572)
• Topography Feature Category: Lake
• Geographical Feature: Lac
• Canadian Province/Territory: Quebec
• Location: L'Anse-Saint-Jean; Le Fjord-du-Saguenay
• Atlas of Canada Locator Map: Lac Sombre
• GPS Coordinate Locator Map: Lac Sombre Lat/Long