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Last name Phornthiwa (Phornthiwa ) , across the world, is an extremely rare surname. Much more frequently, Phornthiwa is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Phornthiwa | Thailand |
Nojakul, Mongsupeng, Khamsang, Pannasan, Deephorm, and Yanawongsa