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Cognomen Orn (อร , Orn , Орн ) , worldwide, is quite a rare surname. The last name Orn is characteristic of Northern Europe, particularly Iceland, where it is quite a common surname, Finland, where it is quite a rare surname, and Estonia. Not in comparison with a country's population, the name is most common in Algeria, the United States, and Finland. Likewise, Orn is the forename as well as the last name.