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Family name Phiyakul (Phiyakul , พิยะกูล
) , in the entire world, is a very rare cognomen. The surname Phiyakul is habitual in South-eastern Asia, particularly Thailand, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| Phiyakul, พิยะกูล | Thailand |
Surachai, Autsadawut, Boonplook, and Phichaporn