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