Cognomen จิรชัยสุทธิกุล (จิรชัยสุทธิกุล 
) , around the world, is a very rare family name. The cognomen จิรชัยสุทธิกุล is habitual in South-eastern Asia, particularly Thailand, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| จิรชัยสุทธิกุล | Thailand |