Surname Phattrajirakul (Phattrajirakul 
) , in all the world, is an extremely rare last name. The cognomen Phattrajirakul is habitual in South-eastern Asia, particularly Thailand, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| Phattrajirakul | Thailand |
Phutsaya, and Apinyaporn