>
Cognomen Mettawiwatana (Mettawiwatana ) , around the globe, is an extremely rare last name. The cognomen Mettawiwatana is habitual in South-eastern Asia, particularly Thailand, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| Mettawiwatana | Thailand |
Khwansumon, and Worrawalan