Last name ริดแก้ว (ริดแก้ว, Ridgaew, Ridkeaw 
) , around the world, is an extremely rare cognomen. The last name ริดแก้ว is characteristic of South-eastern Asia, particularly Thailand, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| Ridkeaw, Ridkaeo | Thailand |