Cognomen แก้วสุวรรณ (Kaewsuwan 
, แก้วสุวรรณ, Mugsuwan ) , in the world, is quite a rare family name. The cognomen แก้วสุวรรณ is habitual in Thailand, where it is quite a rare surname, and Australia, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| Kaewsuwan | United States, Australia, Thailand |
| Mugsuwan, Kaeosuwan | Thailand |
Gaeosuwan, Gaewsuwan, Kaedsuwan, Kaeoesuwan, Kaeowsuwan, Kaesuwan, Kaew Suwan, Kaewsovatana, Kaewsuvan, Kaewsuwen, Kaewsuwon, Kaewsuwun, Kaitsuwan, Kaosuwan, Keaosuwan, Keaungsuwan, Keawsuwan, Keawsuwun, Keowsuwan, Khaewsuwan, Koisuwan, and Vaeosuwan