Surname Koh Huat (Koh Huat 
) , all around the world, is an extremely rare last name. The surname Koh Huat is habitual in South-eastern Asia, particularly Malaysia, where it is a very rare surname. Likewise, Koh Huat is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Koh Huat | Malaysia |