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Family name Pirouz (Pirouz , Пируз , پیروز ) , globally, is a rare surname. The surname Pirouz is characteristic of Armenia, where it is quite a rare surname, Denmark, where it is a rare surname, and Iran. Measured by absolute frequency, it is the most numerous in Iran, the United States, and Armenia. Also, Pirouz is the forename as well as the last name.