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Across the world, Rungchay (Rungchay ) is an extremely rare unknown gender forename. Much more prevalently, Rungchay is the last name as well as the forename.
รุงชัย, รุ่งชัย, and รุ้งชัย
Anchalee, Yaowatida, Somruthai, Abdulhady, and Nutcharee