Family name อ่อนสว่าง (อ่อนสว่าง, Onsawang 
) , throughout the world, is a very rare last name. The family name อ่อนสว่าง is habitual in South-eastern Asia, particularly Thailand, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| Onsawang | Thailand |