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