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Surname Хафнер (Hafner , Haffner , Häfner ) , all around the world, is a common cognomen. The cognomen Хафнер is habitual in Slovenia, where it is quite a common surname, Austria, and Switzerland (explore the name in all countries). In absolute terms, it is commonest in Germany, the United States, and Austria. Very seldom, Хафнер is the forename as well as the last name.