Telegonus, in Greek mythology, especially the Telagonia of Eugammon of Cyrene, the son of the hero Odysseus by the sorceress Circe. Telegonus went to Ithaca in search of his father, whom he killed unwittingly.

Telegonus is a name given to three individuals in Greek mythology. However, the most important of the three was the son of Odysseus and Circe. When he reached adulthood, his mother sent him to Ithaca to tell Odysseus to return. Telegonus went to Ithaca, but thinking it was Corcyra, he started plundering it.

Telegonus ( / təˈlɛɡənəs /; Ancient Greek: Τηλέγονος means "born afar") is the name shared by three different characters in Greek mythology . Telegonus, a king of Egypt who was sometimes said to have married the nymph Io. Telegonus, a Thracian son of the sea god Proteus by his sister-wife Torone of Phlegra, daughter of Poseidon and Phoenice.