Cognomen พิบุญ (พิบุญ 
) , worldwide, is a very rare surname. The last name พิบุญ is habitual in South-eastern Asia, particularly Thailand, where it is a very rare surname. More frequently, พิบุญ is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| พิบุญ | Thailand |