Cognomen 柳剑 (柳剑 
) , all over the world, is a very rare family name. The last name 柳剑 is habitual in Eastern Asia, particularly China, where it is an extremely rare surname. More prevalently, 柳剑 is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| 柳剑 | China |