Cynisca (; or Kyniska, Greek: Κυνίσκα; born c. 440 BC) was a wealthy Spartan princess. She is famous for being the first woman to win at the Olympic Games. Cynisca first entered the Olympics in 396 BC, where she won first prize competing with a team of horses she had trained herself. In 392 BC, Cynisca entered her horses in the Olympics for a second time and was awarded another victory in the same event.