Sinclair Lake is a Lake located in Nipissing, Ontario and has an elevation of 398 meters.

• Latitude: 45° 57' 25'' North   (decimal: 45.9569444)
• Longitude: 78° 53' 20'' West   (decimal: -78.8888888)
• Topography Feature Category: Lake
• Geographical Feature: Lake
• Canadian Province/Territory: Ontario
• Elevation: 398 meters
• Location: Nipissing
• Atlas of Canada Locator Map: Sinclair Lake
• GPS Coordinate Locator Map: Sinclair Lake Lat/Long