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Cognomen Kempf (Kempf , Кемпф , קמפף ) , in the entire world, is a common family name. The family name Kempf is characteristic of Western Europe, particularly Germany, where it is quite a common surname, Switzerland, and Austria, where it is quite a rare surname. Measured by absolute frequency, it is commonest in Germany, the United States, and France. Very seldom, Kempf is the forename as well as the last name.