Cognomen กรุงแก้ว (กรุงแก้ว, Krungkaeo 
) , around the world, is a very rare family name. The last name กรุงแก้ว is habitual in South-eastern Asia, particularly Thailand, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| Krungkaeo | Thailand |
Kroungkaew, Kroungkeaw, Kroungkew, Krungkaew, and Krungkeaw