Lost Bay is a Bay located in Parry Sound, Ontario and has an elevation of 261 meters.

• Latitude: 45° 39' 31'' North   (decimal: 45.6586111)
• Longitude: 79° 52' 48'' West   (decimal: -79.8799999)
• Topography Feature Category: Bay
• Geographical Feature: Bay
• Canadian Province/Territory: Ontario
• Elevation: 261 meters
• Location: Parry Sound
• Atlas of Canada Locator Map: Lost Bay
• GPS Coordinate Locator Map: Lost Bay Lat/Long