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Surname Nyen (เนย , Nyen , Ниен) , globally, is quite a rare last name. The cognomen Nyen is habitual in Malaysia, where it is quite a rare surname, Norway, and Belgium, where it is a rare surname. Not in comparison with a country's population, it is the most numerous in South-eastern Asia, particularly Malaysia, Myanmar, and Indonesia. Very seldom, Nyen is the forename as well as the last name.