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Cognomen Nansu (Nansu , นันสุ ) , in the entire world, is a rare surname. The last name Nansu is characteristic of South-eastern Asia, particularly Myanmar, where it is a rare surname, Thailand, where it is a very rare surname, and Malaysia. In absolute terms, it is the most numerous in Myanmar, Thailand, and India. More prevalently, Nansu is the forename as well as the last name.