The hero who triumphed over the Cyclops in Greek mythology is Odysseus. In "The Odyssey," Odysseus employs his cunning and intelligence to escape from the Cyclops named Polyphemus. By tricking Polyphemus into believing his name is "Nobody," Odysseus manages to blind the giant and escape with his men. This tale emphasizes the value of wit and resourcefulness in overcoming seemingly insurmountable challenges, showcasing Odysseus as a quintessential hero who relies on cleverness rather than brute strength alone.