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Family name Amornratchai (Amornratchai ) , around the world, is a very rare last name. The surname Amornratchai is characteristic of South-eastern Asia, particularly Thailand, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| Amornratchai | Thailand |
Rungfha, Rungarun, Nararach, Chinnawat, and Pongsakorn