Family name ตรงสิริไพศาล (ตรงสิริไพศาล 
) , globally, is an extremely rare surname. The last name ตรงสิริไพศาล is habitual in South-eastern Asia, particularly Thailand, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| ตรงสิริไพศาล | Thailand |