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Last name Laiwiwatn (Laiwiwatn ) , throughout the world, is a very rare cognomen. The surname Laiwiwatn is characteristic of South-eastern Asia, particularly Thailand, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| Laiwiwatn | Thailand |
Panida, Praewrampha, Theerasak, and Praewwanit