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