Cognomen Phonsawatdikul (Phonsawatdikul 
) , in all the world, is a very rare last name. The cognomen Phonsawatdikul is habitual in South-eastern Asia, particularly Thailand, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| Phonsawatdikul | Thailand |
Apiruk, Pailinprapa, Ploytamon, Saranthorn, and Phakaphun