In Greek mythology, Corycia (Ancient Greek: Κωρύκια Korykia) or Corycis (Kôrukis), was a naiad who lived on Mount Parnassus in Phocis. Her father was the local river-god Kephisos or Pleistos of northern Boeotia. With Apollo, she became the mother of Lycoreus (Lyrcorus) who gave his name to the city Lycoreia.