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Cognomen Phengwong (Phengwong ) , all over the world, is a very rare last name. The family name Phengwong is characteristic of South-eastern Asia, particularly Thailand, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| Phengwong | Thailand |
Banchop, Waranya, Khanittha, Noppharat, and Sutthichai