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Worldwide, Ruangtham (เรืองธรรม , Ruangtham ) is an extremely rare boy's first name. Predominantly, Ruangtham is the last name as well as the forename.
เรืองธรรม์
Sai, Suches, Chawin, Panida, Darunee, Jitrada, Wiparat, Supreeya, Khankham, Phakawat, Pureepat, Wilaiwan, Veerapong, and Putthangkoon