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