The Cadusii (also called Cadusians; Ancient Greek: Καδούσιοι, Kadoúsioi; Latin: Cadusii, Arabic:Qādūsīān[1]) were an ancient Iranian tribe that lived in the mountains between Media and the shore of the Caspian Sea,[2][3] an area bordering that of the Anariacae and Albani.
5th-century BC) was highly interested in the Cadusii, incorporating them in his invented history of an early Median dynasty.
According to Xenophon, as Cyrus was about to pass away, he appointed his younger son Tanaoxares (Bardiya) as satrap over the Medes, Armenians, and Cadusii.
[5][6] Some historians report that the Cadusian contingent fought together with Medes and other Northerners in the Achaemenid forces at the Battle of Gaugamela against the Macedonians.
According to Garnik Asatrian and Habib Borjian, "this is one of the rare cases when a folk self-identification with an ancient people can be, at least tentatively, substantiated with historical and linguistic backgrounds.