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