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