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