Cognomen แก้วแก่นจันทร์ (แก้วแก่นจันทร์, Kaeokaenchan 
) , throughout the world, is an extremely rare family name. The family name แก้วแก่นจันทร์ is characteristic of South-eastern Asia, particularly Thailand, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| Kaeokaenchan | Thailand |