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Surname Graff (Graff , グラフ, غراف ) , around the globe, is a common family name. The cognomen Graff 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, the name is most common in the United States, France, and Argentina. Very seldom, Graff is the forename as well as the last name.