Family name 凯晏 (凯晏 
) , in the entire world, is a very rare last name. The cognomen 凯晏 is characteristic of Eastern Asia, particularly China, where it is an extremely rare surname. More prevalently, 凯晏 is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| 凯晏 | China |