Family name แก้วเพ็งกรอ (แก้วเพ็งกรอ, Kaewphengkro 
) , all over the world, is an extremely rare cognomen. The last name แก้วเพ็งกรอ is characteristic of South-eastern Asia, particularly Thailand, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| Kaewphengkro | Thailand |