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Last name Сикорски (Sikorski , Sikorsky , Сикорски ) , in all the world, is a common family name. The cognomen Сикорски is habitual in Poland, where it is quite a common surname, Germany, where it is quite a rare surname, and Estonia. Not in comparison with a country's population, it most frequently occurs in Poland, the United States, and Germany. Also, Сикорски is the forename as well as the last name.