The Gaunless is a tributary river of the Wear in County Durham, England. Its name is Old Norse, meaning "useless". The Gaunless Viaduct, built in 1825, was the tallest viaduct on the South Durham & Lancashire Union Railway.
Settlements
• Copley • Butterknowle • Evenwood • West Auckland • Bishop Auckland ==Tributaries==
Tributaries
• Arn Gill • Hindon Beck • Cowclose Beck • Foul Sike • Grewburn Beck • Howle Beck • Gordon Beck • Norton Fine Beck • Oakley Cross Beck • Hummer Beck • Dene Beck • Coundon Burn == Bridges ==