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Surname Duangthongphon (Duangthongphon ) , all over the world, is a very rare family name. The cognomen Duangthongphon is habitual in South-eastern Asia, particularly Thailand, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| Duangthongphon | Thailand |
Pichayen, Phannipha, Phongdanai, and Nattharikorn