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Last name Ariyawan (Ariyawan , อริยาวรรณ์ , อริยาวรรณ ) , in the entire world, is a rare surname. The cognomen Ariyawan is characteristic of Indonesia, where it is a rare surname, Thailand, where it is a very rare surname, and the United States, where it is an extremely rare surname. Also, Ariyawan is the forename as well as the last name.