Ōrīthȳīa (quadrisyl.), ae, f.,  =  Ὠρείθυια, a female proper name. 
- I.  A daughter of Erechtheus, king of Athens; who became by Boreas the mother of Calaïs and Zetes, Ov. M. 6, 683; Verg. G. 4, 463; id. A. 12, 83; Sil. 8, 5, 16; Cic. Leg. 1, 1, 3.
- II.  A queen of the Amazons, Just. 2, 4, 17.