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Cognomen Sunawong (Sunawong , สุณาวงค์ , สุณาวงศ์ ) , around the globe, is a rare last name. The cognomen Sunawong is characteristic of South-eastern Asia, particularly Thailand, where it is a rare surname, and Philippines, where it is an extremely rare surname. Much less frequently, Sunawong is the forename as well as the last name.