Hewitt Island is a Island located in Frontenac, Ontario.

• Latitude: 44° 29' 3'' North   (decimal: 44.4841666)
• Longitude: 76° 14' 49'' West   (decimal: -76.2469444)
• Topography Feature Category: Island
• Geographical Feature: Island
• Canadian Province/Territory: Ontario
• Location: Frontenac
• Atlas of Canada Locator Map: Hewitt Island
• GPS Coordinate Locator Map: Hewitt Island Lat/Long