The T'deret was a Romulan Star Empire D'deridex-class heavy warbird that saw service during the 24th century. (Ship Recognition Manual, Volume 5: Starships of the Romulan Star Empire) The T'deret was the wingship of the Third Tullan Fleet from 2369 to 2374. During this period it took part in the Fifth Taurhai Offensive where it destroyed three Taurhai Star Dragons.