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Surname দোস্ত (Dost , دوست , দোস্ত) , worldwide, is a common cognomen. The cognomen দোস্ত is characteristic of Afghanistan, where it is quite a common surname, Pakistan, where it is quite a rare surname, and United Arab Emirates. Measured by absolute frequency, it is the most numerous in Pakistan, Afghanistan, and Turkey. More frequently, দোস্ত is the forename as well as the last name.