Last name สมศักดิ์เจริญเดช (สมศักดิ์เจริญเดช 
) , in the world, is an extremely rare family name. The surname สมศักดิ์เจริญเดช is characteristic of South-eastern Asia, particularly Thailand, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| สมศักดิ์เจริญเดช | Thailand |