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Cognomen Nguanphan (Nguanphan , ง้วนพันธุ์, ง้วนพันธ์) , all around the world, is a very rare surname. The last name Nguanphan is characteristic of South-eastern Asia, particularly Thailand, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| Nguanphan | Thailand |