Surname ชัยวงศ์ศิริ (ชัยวงศ์ศิริ 
) , in the entire world, is an extremely rare last name. The cognomen ชัยวงศ์ศิริ is habitual in South-eastern Asia, particularly Thailand, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| ชัยวงศ์ศิริ | Thailand |