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Surname Koerber (Koerber , Körber , קרבר ) , all over the world, is a common cognomen. The family name Koerber is characteristic of Western Europe, particularly Germany, where it is quite a common surname, Austria, where it is quite a rare surname, and Switzerland, where it is a rare surname. Not in comparison with a country's population, the name is most common in Germany, the United States, and Austria.