Cognomen รุงจรัส (รุงจรัส 
) , worldwide, is a very rare last name. The last name รุงจรัส is characteristic of South-eastern Asia, particularly Thailand, where it is a rare surname. Also, รุงจรัส is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| รุงจรัส | Thailand |