Arii/Ari/Arai/Arain may refer to:
* Arii, a Latinized form of Greek ''Αρειοί'' ("Ar(e)ioi"), an adherent of the
Arian
Arianism ( grc-x-koine, Ἀρειανισμός, ) is a Christological doctrine first attributed to Arius (), a Christian presbyter from Alexandria, Egypt. Arian theology holds that Jesus Christ is the Son of God, who was begotten by God t ...
branch of Christianity
* Arii, the inhabitants of
Aria (region), a north eastern Satrapy of the Achaemenid Empire
* Arii, according to Herodotus the original name of the
Medes
* Ari'i or
Ariki, Polynesian nobility
* Another name for
Harii, a Germanic tribe of the 1st century
William Smith">Dictionary of Greek and Roman geography, William Smith (lexicographer), William Smith, 1870, pp. 209, A'RIA->
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