Cognomen ถิระวงศ์ไพศาล (ถิระวงศ์ไพศาล 
) , around the globe, is a very rare family name. The cognomen ถิระวงศ์ไพศาล is characteristic of South-eastern Asia, particularly Thailand, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| ถิระวงศ์ไพศาล | Thailand |