In Greek mythology, Lycus (; Greek, Ancient (to 1453);: Λύκος|Lúkos|wolf) was the son of King Lycus of Thebes, the brother of Nycteus.[1] He appeared in Euripides's Heracles.
Originally from Euboea, Lycus seized power in Ancient Thebes (Boeotia) by killing King Creon who at the time was regent for the son of Eteocles, Laodamas. Lycus mistreated Creon's family, throwing them out of their house and depriving them food and clothing.[2] However, Creon was the father-in-law of the hero Heracles, who returned unexpectedly to Thebes and slew Lycus. Laodamas succeeded him as king.[3]