Araethyrea (/ˌærəˈθɪriə/; Ancient Greek: Ἀραιθυρέα) was in Greek mythology a daughter of Aras, an autochthon who was believed to have built Arantea, the most ancient town in Phlius. She had a brother called Aoris, and is said to have been fond of the chase and warlike pursuits.

When Araethyrea died, her brother called the country of Phlius after her.^[1][2] She was the mother of Phlias. The monuments of Araethyrea and her brother, consisting of round pillars, were still extant in the time of Pausanias; and before the mysteries of Demeter were commenced at Phlius, the people always invoked Aras and his two children with their faces turned towards their monuments.^[3]

• Homer, The Iliad with an English Translation by A.T. Murray, Ph.D. in two volumes. Cambridge, MA., Harvard University Press; London, William Heinemann, Ltd. 1924. ISBN 978-0674995796. Online version at the Perseus Digital Library.
• Homer, Homeri Opera in five volumes. Oxford, Oxford University Press. 1920. ISBN 978-0198145318. Greek text available at the Perseus Digital Library.
• Pausanias, Description of Greece with an English Translation by W.H.S. Jones, Litt.D., and H.A. Ormerod, M.A., in 4 Volumes. Cambridge, MA, Harvard University Press; London, William Heinemann Ltd. 1918. ISBN 0-674-99328-4. Online version at the Perseus Digital Library
• Pausanias, Graeciae Descriptio. 3 vols. Leipzig, Teubner. 1903. Greek text available at the Perseus Digital Library.
• Strabo, The Geography of Strabo. Edition by H.L. Jones. Cambridge, Mass.: Harvard University Press; London: William Heinemann, Ltd. 1924. Online version at the Perseus Digital Library.
• Strabo, Geographica edited by A. Meineke. Leipzig: Teubner. 1877. Greek text available at the Perseus Digital Library.

 This article incorporates text from a publication now in the public domain: Schmitz, Leonhard (1870). "Araethyrea". In Smith, William (ed.). Dictionary of Greek and Roman Biography and Mythology. Vol. 1. p. 254.