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Last name Yuanphan (Yuanphan ) , around the world, is a very rare family name. The family name Yuanphan is habitual in South-eastern Asia, particularly Thailand, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| Yuanphan | Thailand |
Bunnada, Orathai, Suphattra, Suchittra, Patummadee, Phannakorn, Ratchanee, Tachatouch, and Phattarachada