Ruisseau Fernand-Dupuis is a River located in Saint-Roch-des-Aulnaies; L'Islet, Quebec.

• Latitude: 47° 19' 10'' North   (decimal: 47.3194675)
• Longitude: 70° 8' 35'' West   (decimal: -70.1431216)
• Topography Feature Category: River
• Geographical Feature: Ruisseau
• Canadian Province/Territory: Quebec
• Location: Saint-Roch-des-Aulnaies; L'Islet
• Atlas of Canada Locator Map: Ruisseau Fernand-Dupuis
• GPS Coordinate Locator Map: Ruisseau Fernand-Dupuis Lat/Long