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