In Greek mythology, Orthrus (Orthros) or Orthus (Orthos) (Greek: Όρθρος; Όρθος) was a two-headed dog and a doublet ("brother") of Cerberus, both whelped by the chthonic monsters Echidna and Typhon.

He was owned by the three-bodied giant, Geryon. Orthrus and his master, Eurytion, were charged with guarding Geryon's herd of red cattle in the "sunset" land of Erytheia ("red one"), one of the islands of the Hesperides in the far west of the Mediterranean. Heracles eventually slew Orthrus, Eurytion, and Geryon, before taking the red cattle to complete his tenth labor.[1]

Orthrus was one among Echidna's fearsome brood listed in Hesiod's Theogony.[2] According to some sources, it was he rather than Typhon that sired, with Echidna, further chthonic monstrous creatures: the Chimera, the Sphinx [3], the Lernaean Hydra, and even, Hesiod says, the Nemean lion.


  1. Apollodorus, Bibliotheca, 2.5.10ff.
  2. Hesiod, Theogony, 306ff.
  3. Iliad ix.664


  • Graves, Robert, 1960. The Greek Myths, ch. 34. Graves makes highly speculative connection of these creatures with the calendar.
  • Kerényi, Carl, 1951. The Gods of the Greeks, 1951, p. 52.
  • Smith, William; Dictionary of Greek and Roman Biography and Mythology, London (1873). "Orthrus"

External links

This page uses content from the English Wikipedia. The original article was at Orthrus. The list of authors can be seen in the page history.

Ad blocker interference detected!

Wikia is a free-to-use site that makes money from advertising. We have a modified experience for viewers using ad blockers

Wikia is not accessible if you’ve made further modifications. Remove the custom ad blocker rule(s) and the page will load as expected.