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Surname Bielecki (Bielecki , Белецкий , Белецький ) , globally, is a common cognomen. The surname Bielecki is characteristic of Eastern Europe, particularly Poland, where it is quite a common surname, Belarus, where it is quite a rare surname, and Russia. Not in comparison with a country's population, it most frequently occurs in Poland, Russia, and the United States. Also, Bielecki is the forename as well as the last name.