In the entire world, Piriyayothakul (Piriyayothakul 
) is an extremely rare unknown gender given name. Much more frequently, Piriyayothakul is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Piriyayothakul | Thailand |
Sutas, Kantee, Yosakorn, and Pattaweekorn