Family name Sitthithep (Sitthithep 
) , across the world, is an extremely rare cognomen. The family name Sitthithep is characteristic of South-eastern Asia, particularly Thailand, where it is an extremely rare surname. More frequently, Sitthithep is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Sitthithep | Thailand |
Kongpraiwan, and Narathong