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Cognomen Wern (Wern , 沃恩 ) , in the world, is quite a common family name. The cognomen Wern is habitual in Malaysia, where it is quite a common surname, Sweden, where it is a rare surname, and Germany. Measured by absolute frequency, the name is most common in Malaysia, Germany, and the United States. Much less frequently, Wern is the forename as well as the last name.