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