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Family name Kroll (Kroll , קרול , كرول) , throughout the world, is a common cognomen. The family name Kroll is habitual in Guernsey, where it is quite a common surname, Germany, and Israel, where it is quite a rare surname. In absolute terms, it is the most numerous in Germany, the United States, and Poland. Very seldom, Kroll is the forename as well as the last name.