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 | Germany, Italy, Serbia, Albania, Russia |
| Nicolin | Germany, Italy, Indonesia, Romania, France |
| Nikulin | Germany, United States, Romania, Russia, France |
| نيكولين | Palestinian Territory |