Wellesley Island is a Island located in Muskoka, Ontario and has an elevation of 240 meters.

• Latitude: 45° 9' 13'' North   (decimal: 45.1536111)
• Longitude: 79° 32' 37'' West   (decimal: -79.5436111)
• Topography Feature Category: Island
• Geographical Feature: Island
• Canadian Province/Territory: Ontario
• Elevation: 240 meters
• Location: Muskoka
• Atlas of Canada Locator Map: Wellesley Island
• GPS Coordinate Locator Map: Wellesley Island Lat/Long