Family name ศิริวงศ์ไชย (ศิริวงศ์ไชย 
) , in the entire world, is a very rare cognomen. The surname ศิริวงศ์ไชย is characteristic of South-eastern Asia, particularly Thailand, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| ศิริวงศ์ไชย | Thailand |