Lac des Deux Îles is a Lake located in Baie-James; Jamésie, Quebec.

• Latitude: 49° 9' 31'' North   (decimal: 49.1586111)
• Longitude: 78° 51' 17'' West   (decimal: -78.8547221)
• Topography Feature Category: Lake
• Geographical Feature: Lac
• Canadian Province/Territory: Quebec
• Location: Baie-James; Jamésie
• Atlas of Canada Locator Map: Lac des Deux Îles
• GPS Coordinate Locator Map: Lac des Deux Îles Lat/Long