Surname Koonvisal (Koonvisal 
) , globally, is a very rare family name. The last name Koonvisal is characteristic of Thailand, where it is a very rare surname, and the United States, where it is an extremely rare surname. Much less frequently, Koonvisal is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Koonvisal | Thailand, United States |