Family name Sermwittayawong (Sermwittayawong 
) , in all the world, is a very rare last name. The surname Sermwittayawong is characteristic of South-eastern Asia, particularly Thailand, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| Sermwittayawong | Thailand |
| natthawan sermwittayawong researcher (ORCID 0000-0002-8762-0880) |
|
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| decha sermwittayawong researcher |
|