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Cognomen Janchuayna (Janchuayna ) , globally, is a very rare family name. The last name Janchuayna is habitual in South-eastern Asia, particularly Thailand, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| Janchuayna | Thailand |
Adisak, Rapipan, Rawadee, Jongdee, Chuanpit, Piangtawan, Thidaphon, and Kedsaraporn