Family name Khuah (Khuah 
) , in all the world, is a very rare last name. The surname Khuah is characteristic of Singapore, where it is a rare surname, Malaysia, where it is a very rare surname, and India, where it is an extremely rare surname. Also, Khuah is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Khuah | Malaysia, India, United States, Singapore, Myanmar |