William Lake is a Lake located in Nipissing, Ontario and has an elevation of 448 meters.

• Latitude: 45° 48' 37'' North   (decimal: 45.8102777)
• Longitude: 78° 7' 37'' West   (decimal: -78.1269444)
• Topography Feature Category: Lake
• Geographical Feature: Lake
• Canadian Province/Territory: Ontario
• Elevation: 448 meters
• Location: Nipissing
• Atlas of Canada Locator Map: William Lake
• GPS Coordinate Locator Map: William Lake Lat/Long