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Cognomen Locher (洛克 , Locher , Лохер ) , around the globe, is a common surname. The cognomen Locher is habitual in Western Europe, particularly Switzerland, where it is quite a common surname, Liechtenstein, and Germany, where it is quite a rare surname. In absolute terms, it most frequently occurs in Switzerland, Germany, and the United States. Much less frequently, Locher is the forename as well as the last name.