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Cognomen Ngamniyom (Ngamniyom ) , in the world, is a very rare last name. The cognomen Ngamniyom is characteristic of South-eastern Asia, particularly Thailand, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| Ngamniyom | Thailand |
Radtika, Wanlapa, Thanomsak, and Phramaha Montree