Last name จิระวงษ์ถาวร (จิระวงษ์ถาวร 
) , in the entire world, is a very rare cognomen. The family name จิระวงษ์ถาวร is characteristic of South-eastern Asia, particularly Thailand, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| จิระวงษ์ถาวร | Thailand |