Family name Phongsuwankul (Phongsuwankul 
) , all over the world, is a very rare cognomen. The family name Phongsuwankul is habitual in South-eastern Asia, particularly Thailand, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| Phongsuwankul | Thailand |
Suporn, Phanuwat, and Suriyaporn