Surname แก้วแสง (แก้วแสง, Kaewsang 
, Kaeosang ) , across the world, is a rare family name. The surname แก้วแสง is habitual in Thailand, where it is a rare surname, and the United States, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| Kaewsang | United States, Thailand |
| Kaeosang, Kaowsang | Thailand |
Kaeochaeng, Kaeomisaeng, Kaewonsaeng, Kaewsaang, Kaewsaeng, Kaewsasang, Keawsaeng, Keawsang, Keawsangom, and Keawseang