ICGV Óðinn is a decommissioned offshore patrol vessel formerly operated by the Icelandic Coast Guard. She is the oldest ship in the coastguard's fleet, and it is believed that her Burmeister & Wain engines are the only such engines that are still serviceable in the world today. Since her withdrawal from active duty, she has served as a floating exhibit at the Reykjavík Maritime Museum in Reykjavík Harbour. The ship is still maintained, and operative as of June 2022.