Sayajirao (1944–1965) was a British Thoroughbred racehorse. A full brother to 1945 Epsom Derby winner, Dante, he was out of the mare Rosy Legend and sired by the great Nearco who is described by Thoroughbred Heritage as "one of the greatest racehorses of the Twentieth Century" and "one of the most important sires of the century." Nearco was not only unbeaten in racing, but also the patriarch of the most dominant sire line in Thoroughbred history.