Cognomen 公孙 (公孙 
) , around the globe, is quite a rare last name. The cognomen 公孙 is habitual in Eastern Asia, particularly China, where it is a rare surname. Very seldom, 公孙 is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| 公孙 | China |
| 公孙述 1st-century Chinese warlord and Emperor of Chengjia (r. 25 AD-36 AD), CN (b. 100) |
|