Last name อุ้ยวงศ์ไพศาล (อุ้ยวงศ์ไพศาล, Ouiwongpaisal 
) , in the entire world, is an extremely rare family name. The family name อุ้ยวงศ์ไพศาล is characteristic of South-eastern Asia, particularly Thailand, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| Ouiwongpaisal | Thailand |