Cognomen แก้วพิทักษ์ (Kawpitak 
, แก้วพิทักษ์, Kaewpitugs ) , around the globe, is a very rare last name. The family name แก้วพิทักษ์ is habitual in South-eastern Asia, particularly Thailand, where it is a very rare surname. Very seldom, แก้วพิทักษ์ is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Kawpitak, Kaeopitak, Kaewpitugs | Thailand |
Kaeophitak, Kaeophithak, Kaephithak, Kaewphitak, Kaewphithak, Kaewpitak, Kaewpitakk, Kaewpithak, Kaewpitug, Kaewpituk, Kaopitak, Keaupituk, Keawpitak, Keawpithun, Keawpituk, and Keawpitun