HMAS Allenwood (FY18) was an auxiliary minesweeper operated by the Royal Australian Navy (RAN) during World War II. She was launched in 1920 by Ernst Wright at Tuncurry, New South Wales, Australia as Allenwood for Allen Taylor and Co. Ltd. The ship operated along the east coast of Australia, and was requisitioned by the RAN on 27 July 1941. She was returned to her owners in 1946 before being wrecked near Norah Head on 14 September 1951.