Last name แก้วพิชัย (แก้วพิชัย, Kaewapichai 
, Kaeowphichai ) , in the entire world, is a rare surname. The cognomen แก้วพิชัย is characteristic of South-eastern Asia, particularly Thailand, where it is a rare surname.
| VARIANT | COUNTRY |
|---|---|
| Gaewpichai, Kaewapichai, Kaeowphichai | Thailand |
Kaeophichai, Kaeopichai, Kaewaphichai, Kaewphichai, Kaewpichai, Keawapichai, Keawphichai, Keawpichai, and Keowpichai