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Cognomen Графф (Graff , Graeff , Графф ) , in the entire world, is a common family name. The cognomen Графф is habitual in Norway, where it is quite a common surname, Luxembourg, and Denmark, where it is quite a rare surname. Measured by absolute frequency, it most frequently occurs in the United States, Brazil, and France. Much less frequently, Графф is the forename as well as the last name.