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Surname Geyer (Geyer , Геер , Гейер ) , throughout the world, is a common family name. The family name Geyer is habitual in Western Europe, particularly Germany, where it is quite a common surname, Austria, and Luxembourg, where it is quite a rare surname. Measured by absolute frequency, it is the most numerous in Germany, the United States, and South Africa. Very seldom, Geyer is the forename as well as the last name.