Duffy Brook is a River located in Northumberland, New Brunswick and has an elevation of 81 meters.

• Latitude: 46° 28' 3'' North   (decimal: 46.4676344)
• Longitude: 65° 55' 53'' West   (decimal: -65.9314733)
• Topography Feature Category: River
• Geographical Feature: Brook
• Canadian Province/Territory: New Brunswick
• Elevation: 81 meters
• Location: Northumberland
• Atlas of Canada Locator Map: Duffy Brook
• GPS Coordinate Locator Map: Duffy Brook Lat/Long