Cognomen ติยวงศ์ไพศาล (ติยวงศ์ไพศาล 
) , in the entire world, is a very rare family name. The last name ติยวงศ์ไพศาล is habitual in South-eastern Asia, particularly Thailand, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| ติยวงศ์ไพศาล | Thailand |