HMAS Marlean (Q20) was a channel patrol boat operated by the Naval Auxiliary Patrol of the Royal Australian Navy (RAN) during World War II. She was a private vessel built by J. Williams & Sons in 1938. She was requisitioned and later commissioned by the RAN as a channel patrol boat. Marlean earned one battle honour for her wartime service, "Darwin 1942".
Wilson, Michael; Royal Australian Navy 21st Century Warships, Naval auxiliaries 1911 to 1999 including Defence Maritime Services, Profile No. 4 - Revised Edition, Topmill Pty Ltd, Marrickville. ISBN 978-1-876270-72-8