Cognomen Pitchayakasorn (Pitchayakasorn 
) , in all the world, is a very rare last name. The cognomen Pitchayakasorn is characteristic of South-eastern Asia, particularly Thailand, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| Pitchayakasorn | Thailand |
Suwat, Jitlada, Pitchayuth, and Pitchayapol