Thomas Bay is a Bay located in Manitoulin, Ontario and has an elevation of 180 meters.

• Latitude: 45° 59' 28'' North   (decimal: 45.9911111)
• Longitude: 81° 26' 6'' West   (decimal: -81.4349999)
• Topography Feature Category: Bay
• Geographical Feature: Bay
• Canadian Province/Territory: Ontario
• Elevation: 180 meters
• Location: Manitoulin
• Atlas of Canada Locator Map: Thomas Bay
• GPS Coordinate Locator Map: Thomas Bay Lat/Long