Globally, สิทธิไพศาล (สิทธิไพศาล 
, Sittiphaisal , Sitthiphaisal ) is an extremely rare unknown gender first name. Much more prevalently, สิทธิไพศาล is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| สิทธิไพศาล, Sitthiphaisal, Sittiphaisal | Thailand |