Cognomen Jermkhwan (Jermkhwan 
) , in the world, is an extremely rare last name. The surname Jermkhwan is habitual in South-eastern Asia, particularly Thailand, where it is an extremely rare surname. More prevalently, Jermkhwan is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Jermkhwan | Thailand |
Intarakum, and Chantawong