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