Family name ทองศักดิ์ (Thongsak 
, ทองศักดิ์ , Thognsak ) , in all the world, is a rare surname. The surname ทองศักดิ์ is characteristic of South-eastern Asia, particularly Thailand, where it is quite a rare surname, and Malaysia, where it is an extremely rare surname. Likewise, ทองศักดิ์ is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Thongsak | Malaysia, United States, Thailand, France |
| Thognsak, ทองศักดิ์ | Thailand |
Gold, Thnongsak, and Thongsaksang