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