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Cognomen 小南 (Xiaonan , 小南 , Kominami ) , in all the world, is quite a rare surname. The last name 小南 is characteristic of China, where it is a rare surname, Singapore, and Malaysia, where it is a very rare surname. Not in comparison with a country's population, it is the most numerous in China, the United States, and Brazil. More frequently, 小南 is the forename as well as the last name.