Cognomen Sitthichamlong (Sitthichamlong 
) , in the entire world, is a very rare family name. The surname Sitthichamlong is habitual in South-eastern Asia, particularly Thailand, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| Sitthichamlong | Thailand |
Raknuan, Teeranai, Teeraname, and Sitthichai