Rockfel (1935–November 1941) was a British Thoroughbred racehorse and broodmare, best known for winning two Classics in 1938. In a career which lasted from July 1937 until May 1939 she ran thirteen times and won eight races. Rockfel began her career at the lowest level, being beaten in a selling race, but improved to become recognised as one of the best British racemares of the 20th century.