| Nikolai Gogol | Nikolai Gogol |
| Nikolai Iakovlevitch Miaskovski | Nikolai Myaskovsky |
| Nikolai Ivanovich Lobachevsky | Nikolai Lobachevsky |
| Nikolai Karamzin | Nikolay Karamzin |
| Nikolai Kardashev | Nikolai Kardashev |
| Nikolai Konstantinovich Roerich | Nicholas Roerich |
| Nikolai Kuznetsov | Nikolai Gerasimovich Kuznetsov |
| Nikolai Nikolaevich Romanov | Grand Duke Nicholas Nikolaevich of Russia |
| Nikolai Rimsky-Korsakov | Nikolai Rimsky-Korsakov |
| Nikolai Roslavets | Mykola Roslavets |
| Nikolai Rubinstein | Nikolai Grigoryevich Rubinstein |
| Nikolai Rukavishnikov | Nikolai Rukavishnikov |
| Nikolai Stepanovich Chernykh | Nikolai Stepanovich Chernykh |
| Nikolai Trubetzkoy | Nikolai Trubetzkoy |
| Nikolai Vavilov | Nikolai Vavilov |
| Nikolaos Gysis | Nicholaos Gysis |
| Nikolaus Harnoncourt | Nikolaus Harnoncourt |
| Nikolaus Joseph von Jacquin | Nikolaus Joseph von Jacquin |
| Nikolaus Otto | Nicolaus Otto |
| Nikolay Davydenko | Nikolay Davydenko |
| Nikolay Nikolayevich Semyonov | Nikolay Semyonov |
| Nikon | Nikon |
| Nikon-Trimble | Nikon-Trimble |
| Niké | Nike |
| Nikólaos Deligiánnis | Nikolaos Deligiannis |
| Nikólaos Kalogerópulos | Nikolaos Kalogeropoulos |
| Nikólaos Plastíras | Nikolaos Plastiras |
| Nikólaos Strátos | Nikolaos Stratos |
| Nikólaos Triantafillákos | Nikolaos Triantaphillakos |
| Nikólaos Zachariádis | Nikolaos Zachariadis |
| Nilmar Honorato da Silva | Nilmar Honorato da Silva |
| Nilo | Nile |
| Nilo Azul | Blue Nile |
| Nilo Branco | White Nile |
| Nilo ocidental | West Nile virus |
| Nilo Peçanha | Nilo Peçanha |
| Nilotas | Nilotic |
| Nils Gustaf Dalén | Gustaf Dalén |
| Nils Jönsson | Nils Jönsson |
| Nils Liedholm | Nils Liedholm |
| Nilton Santos | Nílton Santos |
