Cognomen Kaeun (가은 
, Kaeun 
) , around the world, is a very rare family name. The surname Kaeun is habitual in Malaysia, where it is an extremely rare surname, and China. Much more prevalently, Kaeun is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| 가은 | South Korea |
| Kaeun | Malaysia, China, South Korea, United States |