Duff Lake is a Lake located in Nipissing, Ontario and has an elevation of 233 meters.

• Latitude: 46° 2' 22'' North   (decimal: 46.0394444)
• Longitude: 77° 41' 54'' West   (decimal: -77.6983333)
• Topography Feature Category: Lake
• Geographical Feature: Lake
• Canadian Province/Territory: Ontario
• Elevation: 233 meters
• Location: Nipissing
• Atlas of Canada Locator Map: Duff Lake
• GPS Coordinate Locator Map: Duff Lake Lat/Long