Surname Kulboon (กุลบูรณ์ 
, Kulboon ) , in the entire world, is a very rare last name. The family name Kulboon is characteristic of South-eastern Asia, particularly Thailand, where it is a very rare surname. Much less frequently, Kulboon is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Kulboon, กุลบูรณ์ | Thailand |