Surname วังแสง (Wansang 
, Wangsang 
, วังแสง ) , globally, is a rare last name. The cognomen วังแสง is habitual in Thailand, where it is a rare surname, and the United States, where it is an extremely rare surname. Likewise, วังแสง is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Wansang | South Korea, United States, India, Thailand |
| Wangsang | United States, South Africa, India, Thailand |
| Wangsaeng, วังแสง | Thailand |