Cognomen รุ่งพันธ์ (Rungpan 
, Rungpun , Rungphan 
) , throughout the world, is a very rare surname. The last name รุ่งพันธ์ is habitual in South-eastern Asia, particularly Thailand, where it is a very rare surname. Much less frequently, รุ่งพันธ์ is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Rungpan, Rungpun | Thailand |
| Rungphan | Thailand, United States |