Last name ปิยรัตน์ไพศาล (ปิยรัตน์ไพศาล 
) , all around the world, is a very rare cognomen. The family name ปิยรัตน์ไพศาล is habitual in South-eastern Asia, particularly Thailand, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| ปิยรัตน์ไพศาล | Thailand |