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Family name Semwong (Semwong , Saemwong) , globally, is a very rare surname. The surname Semwong is habitual in South-eastern Asia, particularly Thailand, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| Semwong | Thailand |
Somparhthana, Kraison, Wipawee, Mathawee, Manattawee, and Krengkrai