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