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Cognomen Фирдуси (Firdousi , Firdusi , Фирдуси ) , throughout the world, is quite a rare last name. The cognomen Фирдуси is characteristic of Armenia, where it is quite a common surname, United Arab Emirates, where it is a rare surname, and Bangladesh. Measured by absolute frequency, it is commonest in India, Armenia, and Bangladesh. More frequently, Фирдуси is the forename as well as the last name.