Surname Khomgongsuwan (Khomgongsuwan 
) , globally, is a very rare family name. The last name Khomgongsuwan is characteristic of South-eastern Asia, particularly Thailand, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| Khomgongsuwan | Thailand |
Opas, Supach, Rassarin, and Pooncharas