Family name Diljaan (Diljaan 
) , in the entire world, is a very rare surname. The family name Diljaan is characteristic of Saudi Arabia, where it is a rare surname, and India, where it is an extremely rare surname. More prevalently, Diljaan is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Diljaan | Saudi Arabia, Kuwait, Italy, India, United States |