In Greek mythology, Euryalus referred to two different people.
- He and Nisus were considered ideal friends. He died during a raid on the Rutulians . (Virgil V, 294, 334; IX 179, 199, 226, 431)
- One of the Epigonoi and Argonaut. He was brother-in-arms of Diomedes.
See also HMS Euryalus.