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Cognomen Kamwichai (Kamwichai ) , around the globe, is a very rare family name. The surname Kamwichai is characteristic of South-eastern Asia, particularly Thailand, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| Kamwichai | Thailand |
Tharin, Mongkon, Athitaya, Phanintr, and Chirattikran