Cognomen Luengyuang (Luengyuang 
) , in all the world, is a very rare surname. The surname Luengyuang is habitual in South-eastern Asia, particularly Thailand, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| Luengyuang | Thailand |
Nawaporn, Benyathip, and Thanatporn