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Cognomen Heun (هيون , Heun , 休恩) , all over the world, is quite a rare family name. The cognomen Heun is habitual in Germany, where it is quite a rare surname, Netherlands, and Taiwan, where it is a rare surname. Measured by absolute frequency, this name is the most popular in Germany, the United States, and Netherlands. Much less frequently, Heun is the forename as well as the last name.