Île Guillaume-Couture is a Island located in Baie-James; Jamésie, Quebec and has an elevation of 393 meters.

• Latitude: 50° 54' 18'' North   (decimal: 50.905)
• Longitude: 73° 38' 00'' West   (decimal: -73.6333333)
• Topography Feature Category: Island
• Geographical Feature: Île / Ile
• Canadian Province/Territory: Quebec
• Elevation: 393 meters
• Location: Baie-James; Jamésie
• Atlas of Canada Locator Map: Île Guillaume-Couture
• GPS Coordinate Locator Map: Île Guillaume-Couture Lat/Long