Last name Valeng (Valeng 
) , in the world, is a very rare family name. The surname Valeng is habitual in South-eastern Asia, particularly Thailand, where it is a very rare surname, and Philippines, where it is an extremely rare surname. Much more prevalently, Valeng is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Valeng | Philippines, Kuwait, India, Thailand, South Africa |