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Last name Karnngam (Karnngam ) , in the entire world, is a very rare family name. The surname Karnngam is characteristic of South-eastern Asia, particularly Thailand, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| Karnngam | Thailand |
Pennapa, Pungpit, Korrakot, and Nupattharanee