Hedon Haven is a waterway that connected the Humber Estuary with the port of Hedon, in Holderness, East Riding of Yorkshire, England. The waterway allowed ships to unload at the port in Hedon, which was also known as Hedon Haven and had, at its peak, three canalised arms that stretched into the town. The port at Hedon was the main port for south Holderness between the 12th and 13th centuries, and was the busiest port in Holderness before the docks at Hull were built.