Surname จิรจุลวงศ์ (จิรจุลวงศ์ 
) , all around the world, is an extremely rare cognomen. The surname จิรจุลวงศ์ is characteristic of South-eastern Asia, particularly Thailand, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| จิรจุลวงศ์ | Thailand |