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