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Surname Dihen (Dihen ) , all over the world, is a very rare last name. The cognomen Dihen is habitual in Hungary, where it is a rare surname, Australia, where it is a very rare surname, and the United Kingdom, where it is an extremely rare surname. In absolute terms, it most frequently occurs in Hungary, Australia, and India. Very seldom, Dihen is the forename as well as the last name.