Île William is a Island located in Petit-Mécatina; Minganie, Quebec and has an elevation of 79 meters.

• Latitude: 51° 14' 17'' North   (decimal: 51.2381296)
• Longitude: 59° 42' 36'' West   (decimal: -59.7099679)
• Topography Feature Category: Island
• Geographical Feature: Île / Ile
• Canadian Province/Territory: Quebec
• Elevation: 79 meters
• Location: Petit-Mécatina; Minganie
• Atlas of Canada Locator Map: Île William
• GPS Coordinate Locator Map: Île William Lat/Long