In Greek mythology, Erythia or Erytheia or Erythea (Ancient Greek: Ερυθεια from erythos "red") may refer to the following figures: * Erythia, also called Erytheis (Ερυθεις), one of the Hesperides (Nymphs of the West). She was the mother of Eurytion by Ares. * Erythia, daughter of Geryon and mother, by Hermes, of Norax, the man who led the Iberians to Sardinia. * Erythia, the home of the above three-bodied giant Geryon.