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