Surname Korljan (Korljan 
) , throughout the world, is a very rare cognomen. The family name Korljan is habitual in Croatia, where it is quite a rare surname, New Zealand, where it is a very rare surname, and Australia. In absolute terms, it is the most numerous in Croatia, the United States, and Australia.
| VARIANT | COUNTRY |
|---|---|
| Korljan | Australia, New Zealand, Croatia, United States |