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Surname Rungsak (Rungsak , รุ่งศักดิ์) , globally, is a very rare cognomen. The last name Rungsak is characteristic of South-eastern Asia, particularly Thailand, where it is a very rare surname. Predominantly, Rungsak is the forename as well as the last name.
Ray, Sodchuen, Bandornsak, Kirdsang, Thongsri, Warivong, Wongkuru, Saengsiengfa, Siriniyomchai, Suttiwaree, Chanchana, Repheephattana, Jitchalad, Sanguonpeuk, Srisuntornsiri, Chanchuphet, Chatchonnabot, Rintharasri, Thepchaito, Wongsawang, Santinantarak, Sanguanphuak, Sukchumphon, Siwanuwatn, Wanaelo, Oonboonpong, Imnak, Sisuai, Srisuk, Buntem, Dokbua, Mingson, Mingsorn, Sanaset, Saeaung, Saewang, Sunthonkiti, Cunaviriyasiri, Kamkeaw, Khuntip, Parawan, Poonsin, Piyarat, Jakkhukusol, Josakun, Thonbuddee, Nakbubpha, Hunthai, Boonmak, and Rapheephattana