In the world, نيكولين (Nikolin 
, Nicolin 
, Nikulin 
) is quite a rare gender-neutral first name. The given name نيكولين is characteristic of Southern Europe, particularly Albania, where it is quite a common masculine name, Greece, where it is quite a rare gender-neutral name, and Italy, where it is a rare unisex name. Also, نيكولين is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Nikolin | Serbia, Russia, Italy, Germany, Albania |
| Nicolin | Indonesia, Romania, France, Italy, Germany |
| Nikulin | Romania, Russia, France, Germany, United States |
| نيكولين | Palestinian Territory |