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