In Greek mythology, Eurybia (; Ancient Greek: Εὐρυβία, Εὐρυβίη, meaning "wide-force"), described as "[having] a heart of flint within her", was the daughter of Pontus and Gaia, consort to the Titan Crius, and mother of Astraeus, Perses, and Pallas. An older, relatively minor deity, her role in most mythology is as the ancestor of other gods, and she often plays no role in the mythology.