According to Hesychius and the Etymologicum Magnum, a surname of Zeus, describing him as the avenger of evil deeds. But the name is also used, especially by the tragic writers, to designate any deity or demon who avenges wrongs committed by men.

The Romans had their Jupiter Vindex.

Percy Bysshe Shelley wrote a poem called Alastor; or the Spirit of Solitude.



  • Aeschylus. Agamemnon, 1479, 1508; Persians, 343.
  • Euripides. Phoenician Women, 1550 ff.
  • Pausanias. Description of Greece viii, 24.4.
  • Plutarch. De Defectu Oraculorum, 13 ff.
  • Smith, William. (1870). Dictionary of Greek and Roman Biography and Mythology. London: Taylor, Walton, and Maberly.
  • Sophocles. Trachiniae, 1092.

This article incorporates text from Dictionary of Greek and Roman Biography and Mythology (1870) by William Smith, which is in the public domain.