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Cognomen Kunjun (坤军 , 坤君 , Kunjun ) , in all the world, is a rare family name. The last name Kunjun is habitual in China, where it is a very rare surname, Thailand, and Malaysia, where it is an extremely rare surname. Not in comparison with a country's population, it is commonest in China, Thailand, and India. More frequently, Kunjun is the forename as well as the last name.