Last name สมบูน (Somboun 
, สมบูน , Somboone ) , throughout the world, is quite a rare family name. The cognomen สมบูน is characteristic of Laos, where it is quite a common surname, France, where it is a very rare surname, and the United States, where it is an extremely rare surname. More frequently, สมบูน is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Somboun | Canada, Laos, United States, Thailand, France |
| สมบูน | Thailand |
| Somboone | Thailand, United States |