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Last name Ngamthaun (Ngamthaun ) , all over the world, is a very rare family name. The cognomen Ngamthaun is habitual in South-eastern Asia, particularly Thailand, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| Ngamthaun | Thailand |
Sangwan, Tharanin, Manatchaya, Manutchaya, and Patanapong