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