Gylippus (; was a Spartan general of the 5th century BC; he was the son of Cleandridas, who was the adviser of King Pleistoanax and had been expelled from Sparta for accepting Athenian bribes in 446 BC and fled to Thurii, a pan-Hellenic colony then being founded in the instep of Italy with Athenian help and participation. His mother may have been a helot, which meant he was not a true Spartiate but a mothax, a man of inferior status.