Family name ไพศาลธนฤทธิ์ (ไพศาลธนฤทธิ์ 
) , around the world, is an extremely rare cognomen. The last name ไพศาลธนฤทธิ์ is habitual in South-eastern Asia, particularly Thailand, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| ไพศาลธนฤทธิ์ | Thailand |