USS Dominant (MSO-431) was an Agile-class minesweeper built for the United States Navy. The second ship to be named Dominant by the U.S. Navy was launched as AM-431 on 5 November 1953 by C. Hiltebrant Dry Dock Co., Kingston, New York; sponsored by Mrs. Belle S. Hiltebrant; and commissioned on 8 November 1954. On 7 February 1955, the ship's hull classification was changed from "AM" for "minesweeper" to "MSO" for "minesweeper, ocean" during a mid-1950s hull reclassification of all U.S. Navy mine warfare vessels.