The Tune ship is of the karve type, a special kind of longship. It was found at the Haugen farm on Rolvsøy in Tune, Østfold, Norway. The ship was built around AD 900, and is made of clinkered oak planks. It was used in a ship burial (Norwegian:Båthaugen, from the Old Norse word haugr meaning mound or barrow) and was discovered when the burial mound was opened. The site was excavated by archaeologist Oluf Rygh in 1867.
The Tune ship is fragmentary, but may have been up to 22 metres (72 ft) long. It is 4.35 metres (14.3 ft) wide and would have had 11 or 12 pairs of oars. The length of the keel is approximately 14 metres (46 ft). It is of rugged construction with naturally grown ribs, thick crossbeams and a solid gunwale.