Cognomen Uaj (Uaj 
) , around the world, is a very rare family name. The surname Uaj is characteristic of South-eastern Asia, particularly Malaysia, where it is a very rare surname, Indonesia, and Thailand, where it is an extremely rare surname. Likewise, Uaj is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Uaj | Thailand, India, Indonesia, Malaysia |