Cognomen 琴蓝 (琴蓝 
) , across the world, is a very rare last name. The cognomen 琴蓝 is characteristic of Eastern Asia, particularly China, where it is an extremely rare surname. More frequently, 琴蓝 is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| 琴蓝 | China |