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Cognomen Chamnain (Chamnain
) , in all the world, is an extremely rare family name. The cognomen Chamnain is habitual in South-eastern Asia, particularly Thailand, where it is an extremely rare surname. More prevalently, Chamnain is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Chamnain | Thailand, United States |
Pomjeen, Manwong, Vanpravast, Jamsawat, and Chongsathapornpong