Johnston Bay is a Bay located in Lennox and Addington, Ontario and has an elevation of 372 meters.

• Latitude: 45° 5' 55'' North   (decimal: 45.0986111)
• Longitude: 77° 20' 46'' West   (decimal: -77.3461111)
• Topography Feature Category: Bay
• Geographical Feature: Bay
• Canadian Province/Territory: Ontario
• Elevation: 372 meters
• Location: Lennox and Addington
• Atlas of Canada Locator Map: Johnston Bay
• GPS Coordinate Locator Map: Johnston Bay Lat/Long