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Last name Buyong (Buyong , 步勇 , 부용 ) , in the entire world, is quite a rare surname. The cognomen Buyong is characteristic of South-eastern Asia, particularly Malaysia, where it is quite a rare surname, Philippines, where it is a rare surname, and Singapore. Measured by absolute frequency, this name is the most popular in Malaysia, China, and Philippines. More frequently, Buyong is the forename as well as the last name.