Last name รุ่งรุจิรัตน์ (รุ่งรุจิรัตน์, Roongrujirat 
) , all around the world, is a rare cognomen. The cognomen รุ่งรุจิรัตน์ is habitual in South-eastern Asia, particularly Thailand, where it is a rare surname.
| VARIANT | COUNTRY |
|---|---|
| Roongrujirat | Thailand |