Last name แก้วผดุงรัตน์ (แก้วผดุงรัตน์, Kaewpadungrat 
) , in the world, is an extremely rare cognomen. The surname แก้วผดุงรัตน์ is characteristic of South-eastern Asia, particularly Thailand, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| Kaewpadungrat | Thailand |