Gygaea (Greek: Γυγαίη) was a daughter of Amyntas I and sister of Alexander I of Macedon. She was given away in marriage by her brother to the Persian official Bubares. Herodotus also mentions a son of Bubares and Gygaea, called Amyntas, who was later given the city Alabanda in Caria by Xerxes I (r. 486-465).
There is also another Gygaea, second wife of Amyntas III of Macedon, whose son Menelaus was put to death by his stepbrother Philip II in 347 BC.
This article incorporates text from a publication now in the public domain: Smith, William, ed. (1870). "". Dictionary of Greek and Roman Biography and Mythology.