Deer Island Bay is a Bay located in Manitoulin, Ontario and has an elevation of 177 meters.

• Latitude: 45° 57' 10'' North   (decimal: 45.9527777)
• Longitude: 81° 13' 13'' West   (decimal: -81.2202777)
• Topography Feature Category: Bay
• Geographical Feature: Bay
• Canadian Province/Territory: Ontario
• Elevation: 177 meters
• Location: Manitoulin
• Atlas of Canada Locator Map: Deer Island Bay
• GPS Coordinate Locator Map: Deer Island Bay Lat/Long