Cognomen 兆琰 (兆琰 
) , in all the world, is a very rare surname. The family name 兆琰 is habitual in Eastern Asia, particularly China, where it is an extremely rare surname. More frequently, 兆琰 is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| 兆琰 | China |