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Cognomen Heidinger (Heidinger , Хайдингер) , around the globe, is quite a rare surname. The last name Heidinger is habitual in Austria, where it is quite a common surname, Germany, where it is quite a rare surname, and Hungary. Measured by absolute frequency, the name is most common in Germany, Austria, and the United States. Much less frequently, Heidinger is the forename as well as the last name.