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Family name Poonkhaothong (Poonkhaothong ) , worldwide, is an extremely rare cognomen. The cognomen Poonkhaothong is habitual in South-eastern Asia, particularly Thailand, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| Poonkhaothong | Thailand |
Narin, Chulaluk, Teerawat, Sittiporn, and Patcharawaran