Cognomen Sumatsittikul (Sumatsittikul 
) , all around the world, is an extremely rare last name. The surname Sumatsittikul is characteristic of South-eastern Asia, particularly Thailand, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| Sumatsittikul | Thailand |
Sopa, Worakemon, Methasit, and Kwanpitcha