Family name คชแก้ว (คชแก้ว, Cotchakaew 
) , in all the world, is a very rare cognomen. The cognomen คชแก้ว is characteristic of South-eastern Asia, particularly Thailand, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| Cotchakaew | Thailand |
Glass, and Khodchakaeo