Last name แก้วประเสริฐชัย (แก้วประเสริฐชัย, Kaewprasertchai 
) , around the globe, is a very rare family name. The surname แก้วประเสริฐชัย is habitual in South-eastern Asia, particularly Thailand, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| Kaewprasertchai | Thailand |