Lac William is a Lake located in Saint-Ferdinand; L'Érable, Quebec and has an elevation of 204 meters.

• Latitude: 46° 7' 17'' North   (decimal: 46.1214249)
• Longitude: 71° 34' 11'' West   (decimal: -71.5698185)
• Topography Feature Category: Lake
• Geographical Feature: Lac
• Canadian Province/Territory: Quebec
• Elevation: 204 meters
• Location: Saint-Ferdinand; L'Érable
• Atlas of Canada Locator Map: Lac William
• GPS Coordinate Locator Map: Lac William Lat/Long