Alcibiades (1927–1957) was an American Thoroughbred racemare that won the Kentucky Oaks and was later a good broodmare. Owned and bred by Hal Price Headley at his Beaumont Farm near Lexington, Kentucky, Alcibiades was named for the ancient Greek soldier and statesman Alcibiades. She was sired by Supremus out of Regal Roman. On her sire's side, she goes back to the great stallion Domino. Alcibiades was retired from racing for a record of 23 starts with 7 wins, 2 seconds and 4 thirds with earnings of $47,860. As a broodmare, Alcibiades produced eight foals, seven of which were runners including: