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Cognomen Phirasorn (Phirasorn ) , around the world, is a very rare last name. The family name Phirasorn is characteristic of South-eastern Asia, particularly Thailand, where it is a rare surname.
| VARIANT | COUNTRY |
|---|---|
| Phirasorn | Thailand |
Lek, Prapan, Damisa, Inchan, Taphain, Chokmanat, Piyasiri, Nattawut, Nachayada, Waruntorn, Chinnachot, Pongsakorn, Nattanicha, Rattanaporn, and Duangruethai