Thomas Lake is a Lake located in Renfrew, Ontario and has an elevation of 187 meters.

• Latitude: 45° 59' 8'' North   (decimal: 45.9855555)
• Longitude: 77° 26' 53'' West   (decimal: -77.4480555)
• Topography Feature Category: Lake
• Geographical Feature: Lake
• Canadian Province/Territory: Ontario
• Elevation: 187 meters
• Location: Renfrew
• Atlas of Canada Locator Map: Thomas Lake
• GPS Coordinate Locator Map: Thomas Lake Lat/Long