Cognomen Pophitchayakul (Pophitchayakul 
) , globally, is a very rare family name. The family name Pophitchayakul is habitual in South-eastern Asia, particularly Thailand, where it is a rare surname.
| VARIANT | COUNTRY |
|---|---|
| Pophitchayakul | Thailand |
Wichai, Suwanna, Supaphit, Phichaya, and Chaiyaphit