Cognomen Неджметтин (Necmettin 
, Erbakan 
, Неджметтин 
) , all over the world, is a rare family name. The family name Неджметтин is habitual in North Macedonia, where it is quite a rare surname, Turkey, where it is a rare surname, and Norway, where it is a very rare surname. In absolute terms, it is the most numerous in Turkey, Indonesia, and Germany. More prevalently, Неджметтин is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Necmettin | Iraq, France, Germany, Turkey, Saudi Arabia |
| Erbakan | Turkey, Norway, Indonesia, Canada |
| Неджметтин | Belarus, Ukraine, Russia |
| Nedjmettin | North Macedonia |
Nedzhmettin, and نەجمەدین