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Cognomen Chernkhwan (Chernkhwan ) , in the world, is an extremely rare surname. The cognomen Chernkhwan is habitual in South-eastern Asia, particularly Thailand, where it is an extremely rare surname. More frequently, Chernkhwan is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Chernkhwan | Thailand |
Kaofai, Mecasuwandumrong, Krajong, Kaewsrijan, Chantaranothai, and Chantarasanam