Cognomen Khumlai (Khumlai 
) , across the world, is a very rare family name. The cognomen Khumlai is characteristic of South-eastern Asia, particularly Thailand, where it is a very rare surname. Very seldom, Khumlai is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Khumlai | India, Thailand |