Family name Piriyasittikarn (Piriyasittikarn 
) , in all the world, is a very rare cognomen. The cognomen Piriyasittikarn is habitual in South-eastern Asia, particularly Thailand, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| Piriyasittikarn | Thailand |
Chanyut, and Patcharaporn