Surname แสงสว่าง (Light 
, Saengsawang 
, Sangsawang 
) , all around the world, is a common last name. The cognomen แสงสว่าง is habitual in Myanmar, where it is quite a common surname, Thailand, where it is quite a rare surname, and Bahamas. In absolute terms, it is commonest in the United States, Myanmar, and Thailand. Very seldom, แสงสว่าง is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Light | Thailand, Egypt, Indonesia, United States, Myanmar |
| Saengsawang | Malaysia, Germany, Thailand, United States |
| Sangsawang | United Kingdom, Malaysia, Thailand, United States |
Llight, Roungsawang, Saeangsawang, Saengsavang, Saengsawarng, Saengsaweng, Saengsawng, Saengssawang, Saengswang, Saingsawang, Sangawang, Sangiamluk, Sangiemrat, Sangsawaeng, Sangsawarng, Sangsaweang, Sangsaweng, Sangsawrang, Saungsawang, and Sengsawang