Cognomen ศิริศักดิ์พงศา (ศิริศักดิ์พงศา 
) , in the world, is an extremely rare surname. The cognomen ศิริศักดิ์พงศา is characteristic of South-eastern Asia, particularly Thailand, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| ศิริศักดิ์พงศา | Thailand |