Cognomen Korboonkwan (Korboonkwan 
) , throughout the world, is a very rare surname. The family name Korboonkwan is characteristic of South-eastern Asia, particularly Thailand, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| Korboonkwan | Thailand |
Sutee, Pimprapaporn, and Pattarathorn