(Ἀριστόκλεια), a priestess in Delphi, from whom Pythagoras said that he had received many of his precepts. (Porphyr. § 41. p. 41, ed. Küster.) She is called Themistocleia in Diogenes Laertius (8.21), and Theocleia in Suidas. (s. v. Πυθαγόρας.) Pythagoras is said to have written a letter to her. See Fabric. Bibl. Graec. i. p. 881.