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