HMAS Terka
 HMAS Terka (FY.98) was an auxiliary minesweeper operated by the Royal Australian Navy (RAN) during World War II. The ship was launched as Sir Dudley de Chair in 1925 and operated by the Adelaide Steamship Company until she was requisitioned by the RAN in December 1940. She sank while at her moorings at Madang New Guinea on 26 March 1945 and was abandoned.