A naiad, regarded as a daughter of Inachus. Her father is said to have founded the worship of Hera at Argolis, and Callithyia was the goddess' first priestess. She is also mentioned as the daughter of Iasus or Peiren or Peiranthus.

It is possibly another name for Io, q.v.



  • Plutarch in Eusebius, Preparation for the Gospel, 3. 8.
  • Preller, L. De Hellanico Lesbio Historico, p. 40.
  • Smith, William. (1870). Dictionary of Greek and Roman Biography and Mythology. London: Taylor, Walton, and Maberly.