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