Cognomen จันทนรุ่งโรจน์ (จันทนรุ่งโรจน์, Jantanarungroj 
) , in the world, is an extremely rare surname. The surname จันทนรุ่งโรจน์ is habitual in South-eastern Asia, particularly Thailand, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| Jantanarungroj | Thailand |