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Family name รุ่งแสง (Rungsaeng , Rungsang , รุ่งแสง) , around the globe, is a rare surname. The family name รุ่งแสง is characteristic of Thailand, where it is quite a rare surname, Malaysia, where it is an extremely rare surname, and the United States. Very seldom, รุ่งแสง is the forename as well as the last name.