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Cognomen Olteanu (Olteanu , Олтяну ) , in the entire world, is a common family name. The cognomen Olteanu is characteristic of Romania, where it is a common surname, Aland Islands, where it is quite a common surname, and Moldova, where it is quite a rare surname. Not in comparison with a country's population, it is commonest in Romania, Italy, and Spain. Much less frequently, Olteanu is the forename as well as the last name.