Mont, previously known as Knock Nevis, Jahre Viking, Happy Giant and Seawise Giant, was a ULCC supertanker. Before its decommission it was the longest ship ever built. After its final journey in 2009, it was intentionally beached in India for demolition.

Built in 1979 by Sumitomo Heavy Industries,Ltd. at their shipyard in Japan. During the Iran-Iraq War it was damaged by an air force attack in the Strait of Hormuz on 14 May 1988. She was sank and was considered completely lost. However the wreckage was salvaged and repaired. After the repairs she was back in service as Happy Giant.