Family name รุ่งพันธุ์ (Rungphan 
, รุ่งพันธุ์) , in the entire world, is a very rare cognomen. The family name รุ่งพันธุ์ is habitual in South-eastern Asia, particularly Thailand, where it is a very rare surname. Very seldom, รุ่งพันธุ์ is the forename as well as the last name.