Cognomen Piboon (พิบูลย์ 
, ไพบูรณ์ , Piboon 
) , globally, is quite a rare last name. The surname Piboon is characteristic of Thailand, where it is quite a rare surname, and the United States, where it is an extremely rare surname. More frequently, Piboon is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| พิบูล, พิบูลย์, ไพบูรณ์ | Thailand |
| Piboon | Thailand, United States, Malaysia |