Family name ศักดิ์พัฒศิริ (ศักดิ์พัฒศิริ 
) , globally, is an extremely rare cognomen. The last name ศักดิ์พัฒศิริ is habitual in South-eastern Asia, particularly Thailand, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| ศักดิ์พัฒศิริ | Thailand |