Surname ยศไพศาล (ยศไพศาล 
, Yospaisarn ) , in the world, is a very rare last name. The cognomen ยศไพศาล is characteristic of South-eastern Asia, particularly Thailand, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| Yospaisarn, ยศไพศาล | Thailand |