Family name รุ่งฤทธิ์ (Rungrit 
, Raungrit , Rungriht ) , throughout the world, is a rare last name. The family name รุ่งฤทธิ์ is habitual in Thailand, where it is a rare surname, and the United States, where it is an extremely rare surname. Likewise, รุ่งฤทธิ์ is the forename as well as the last name.