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Family name Chamnanwech (Chamnanwech ) , in all the world, is a very rare cognomen. The family name Chamnanwech is characteristic of South-eastern Asia, particularly Thailand, where it is a rare surname.
| VARIANT | COUNTRY |
|---|---|
| Chamnanwech | Thailand |
Uthen, Thitima, Uraiwan, Sasithon, Nipaporn, Karnphicha, Rinyaphat, and Karnphitcha