Surname จิรวัฒนกุล (จิรวัฒนกุล 
, Jirawattankoon , Jirawattanakul ) , around the globe, is a very rare family name. The last name จิรวัฒนกุล is characteristic of South-eastern Asia, particularly Thailand, where it is a rare surname.
| VARIANT | COUNTRY |
|---|---|
| Jirawattankoon, จิรวัฒนกุล, Jirawattanakul | Thailand |