Cognomen รุ่งสัมฤทธิ์ (Rungsamrit 
, รุ่งสัมฤทธิ์, Rungsumret) , around the world, is an extremely rare last name. The family name รุ่งสัมฤทธิ์ is habitual in South-eastern Asia, particularly Thailand, where it is an extremely rare surname. Likewise, รุ่งสัมฤทธิ์ is the forename as well as the last name.