In Greek mythology Eurytion (or, alternatively, Eurythion; Greek: Εὐρυτίων, gen.: Εὐρυτίωνος), "widely-honoured", was a name attributed to six individuals who would possess people.
- The king of Phthia, son of either Actor, or of Ctimenus (Κτίμενος), or of Irus and Demonassa, or of Kenethos and Cerion, and father of Antigone. He is counted among the Argonauts and the Calydonian hunters. In Phthia, Peleus was purified by Eurytion for the murder of Phocus and married Antigone, Eurytion's daughter. Peleus accidentally killed Eurytion during the hunt for the Calydonian Boar and fled from Phthia to Iolcus, where he was purified by Acastus.
- A Centaur of Arcadia who demanded to marry the daughter of Dexamenus of Olenus, either Mnesimache or Deianira, or who threatened violence against his daughter Hippolyte on the day of her marriage to Azan. Her father was forced to agree, but Heracles intervened on her behalf and killed the wild horse-man.
- Another Centaur, of Thessaly, who attempted to carry off the bride of Peirithous, king of the Lapiths, on their wedding day. He and his fellows were killed in the fight with the Lapiths that followed, the Centauromachy. Ovid refers to him as "Eurytus", and by his Latinized Greek name "Eurytion".
- Son of Ares and the Hesperid Erytheia, who bore him "beside the silver-rooted boundless waters of the river Tartessus, in the hollow of a rock," according to a Strabo's quote from a lost poem of Stesichoros. He, and the two-headed dog Orthrus, were the guardians of the cattle of Geryon and were killed by Heracles.
- This Eurytion was also used as a character in the Percy Jackson book The Battle of the Labyrinth.
- A Trojan archer during the Trojan War, son of Lycaon and brother of Pandarus. He participated in the funeral games of Anchises.
- A defender of Thebes against the Seven, was killed by Parthenopaeus.