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Family name Namhwan (Namhwan ) , globally, is an extremely rare surname. Much more frequently, Namhwan is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Namhwan | Thailand |
Kim, Hinpha, Maniwan, Boondach, Lamchaona, Vannasai, Jirattikan, and Thongkhomnoi