Family name Rakjul (Rakjul 
) , around the world, is a very rare cognomen. The surname Rakjul is characteristic of South-eastern Asia, particularly Thailand, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| Rakjul | Thailand |
Supalak, Suppalak, Thitiphan, Natthakrit, and Natthakritta