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Last name 伯尔纳 (Boerner , 伯尔纳) , in all the world, is quite a common family name. The cognomen 伯尔纳 is habitual in Germany, where it is quite a rare surname, Austria, and Denmark. In absolute terms, it is commonest in Germany, the United States, and Japan. Much less frequently, 伯尔纳 is the forename as well as the last name.