| Nikandros | | - | Ancient Greek | |
| Nikanor | | - | Ancient Greek | |
| Nike | | - | Greek Mythology, Ancient Greek | |
| Nikephoros | | - | Ancient Greek, Greek Mythology | |
| Niketas | | - | Ancient Greek | |
| Nikias | | - | Ancient Greek | |
| Nikki | | NIK-ee | English | |
| Nikkole | | ni-KOL | English (Rare) | |
| Niko | | NEE-ko (Finnish) | Finnish, Croatian, Slovene | |
| Nikodemos | | - | Ancient Greek, Biblical Greek | |
| Nikola (1) | | - | Serbian, Croatian, Slovene, Bulgarian, Macedonian, Hungarian, Czech, Basque, Medieval Slavic | |
| Nikolaj | | - | Danish, Slovene | |
| Nikolaos | | - | Ancient Greek, Greek | |
| Nikolas | | - | Greek, English | |
| Nikole | | ni-KOL (English) | Basque, English | |