Cognomen Sawetwanichakul (Sawetwanichakul 
) , globally, is an extremely rare last name. The cognomen Sawetwanichakul is characteristic of South-eastern Asia, particularly Thailand, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| Sawetwanichakul | Thailand |
Purinut, Suchanart, Jirasawet, Jirachaya, and Charoenchit