Cognomen Herjan (Herjan 
) , in all the world, is a rare surname. The cognomen Herjan is characteristic of Poland, where it is a rare surname, Malaysia, and Indonesia, where it is a very rare surname. Also, Herjan is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Herjan | Malaysia, Netherlands, Indonesia, Philippines, Poland |