Cognomen 兮兮 (兮兮 
) , across the world, is a very rare last name. The last name 兮兮 is characteristic of Eastern Asia, particularly China, where it is an extremely rare surname. Much more prevalently, 兮兮 is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| 兮兮 | China |