Last name نيكولين (Nikolin 
, Nicolin 
, Nikulin 
) , in the world, is quite a common family name. The family name نيكولين is characteristic of Serbia, where it is quite a common surname, Mauritius, and Estonia, where it is quite a rare surname. In absolute terms, this name is the most popular in Russia, Serbia, and Italy. Likewise, نيكولين is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Nikolin | Serbia, Albania, Germany, Russia, Italy |
| Nicolin | France, Romania, Germany, Indonesia, Italy |
| Nikulin | France, Romania, United States, Germany, Russia |
| نيكولين | Palestinian Territory |