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Cognomen Yuon (Yuon , Юн , Юон ) , all over the world, is quite a common family name. The last name Yuon is habitual in Armenia, where it is quite a common surname, Kazakhstan, where it is quite a rare surname, and Kyrgyzstan. Not in comparison with a country's population, it is commonest in Russia, Kazakhstan, and Malaysia. Very seldom, Yuon is the forename as well as the last name.