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Cognomen Prayulsak (Prayulsak ) , all over the world, is a very rare family name. The family name Prayulsak is habitual in South-eastern Asia, particularly Thailand, where it is a rare surname.
| VARIANT | COUNTRY |
|---|---|
| Prayulsak | Thailand |
Naruenuch, Narunart, Narubadin, and Naruebadin