| Name | Gender | Pronounced | Usage | Popularity |
|---|---|---|---|---|
| Nadja | NAHT-yah (German) | German, Slovene | ||
| Nastja | - | Slovene | ||
| NataŠA | - | Serbian, Croatian, Slovene, Macedonian | ||
| Natalija | - | Serbian, Croatian, Slovene, Macedonian | ||
| NeŽA | - | Slovene | ||
| Neja | - | Slovene | ||
| Nejc | - | Slovene | ||
| Nevenka | - | Croatian, Serbian, Slovene | ||
| Nik | - | English, Greek, Slovene | ||
| Nika (2) | - | Slovene, Croatian | ||
| Niko | NEE-ko (Finnish) | Finnish, Croatian, Slovene | ||
| Nikola (1) | - | Serbian, Croatian, Slovene, Bulgarian, Macedonian, Hungarian, Czech, Basque, Medieval Slavic | ||
| Nikolaj | - | Danish, Slovene | ||
| OŽBalt | - | Slovene | ||
| OŽBej | - | Slovene |