Family name Unjun (Unjun 
) , all over the world, is a very rare last name. The cognomen Unjun is characteristic of Malaysia, where it is an extremely rare surname, and China. More prevalently, Unjun is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Unjun | Japan, China, Malaysia, United States, India |