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