Family name อ้วง (Uang 
, อ้วง) , in the world, is quite a rare last name. The family name อ้วง is habitual in Bulgaria, where it is a rare surname, Indonesia, and Malaysia. Measured by absolute frequency, it is the most numerous in China, Indonesia, and India. Likewise, อ้วง is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Uang | China, Indonesia, Malaysia, Bulgaria, India |