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