| N galaxy | Galassie N |
| N magnitude | Magnitudi N |
| N scale | Scala N |
| N'Djamena | N'Djamena |
| N-body problem | Problema degli n-corpi |
| N-Butyllithium | N-butillitio |
| N-Gage | N-Gage |
| N-sphere | Ipersfera |
| N-terminus | Dominio N-terminale |
| Na | NA |
| Na-Dené languages | Lingue Na-Dené |
| NAACP Image Awards | NAACP Image Award |
| Naantali | Naantali |
| Naas | Naas |
| nab | acchiappare |
| Nabarniz | Nabarniz |
| Nabataean language | Lingua nabatea |
| Nabataeans | Nabatei |
| Nabatean alphabet | Alfabeto nabateo |
| Nabburg | Nabburg |
| Naberezhnye Chelny | Naberežnye Čelny |
| Nabesite | Nabesite |
| Nabeul Governorate | Nabeul |
| Nabilone | Nabilone |
| Nabis | Nabide |
| Nabla in cylindrical and spherical coordinates | Nabla in coordinate cilindriche e sferiche |
| Nabla symbol | Operatore Nabla |
| Nablus | Nablus |
| nabob | nababbo |
| Naboo | Naboo |
| Nabopolassar | Nabopolassar |
| Nabucco | Nabucco |
| Nabucco Pipeline | Nabucco |
| nacelle | navicella |
| Nacht und Nebel | Prigionieri Notte e Nebbia |
| nacre | madreperla |
| Nacrite | Nacrite |
| NAD Electronics | NAD Electronics |
| Nadaillac | Nadaillac |
| Nadar | Nadar |
| Nadezhda Alliluyeva-Stalina | Nadežda Allilueva |
| Nadi | Nadi |
| Nadia | Nadia |
| Nadia Comăneci | Nadia Comăneci |
| Nadia Petrova | Nadia Petrova |
| Nadine | Nadine Beiler |
| Nadine Gordimer | Nadine Gordimer |
| nadir | nadir |
| Nador | Nador |
| NADP | Nicotinammideadenindinucleotide |
| Nadsat | Nadsat |
| Nadsat lexicon | Nadsat |
| Naestved | Naestved |
| Naevius Sutorius Macro | Nevio Sutorio Macro |
| Nafnaþulur | Nafnaþulur |
| Nafplion | Nauplia |
| NAFTA | North American Free Trade Agreement |
| Nafta Lendava | NK Nafta Lendava |
| nag | brontolare |
| nag at | trovare sempre da ridire su |
| Nag Hammadi library | Codici di Nag Hammâdi |
| Nag Hammâdi | Nag Hammâdi |
| nag into | assillare per |
| Naga | Naga |
| Naga City | Naga |
| Naga Jolokia pepper | Bhut jolokia |
| Naga people | Naga |
| Nagai Kafu | Nagai Kafū |
| Nagai Stadium | Stadio Nagai |
| Nagaland | Nagaland |
| Nagamichi Kuroda | Nagamichi Kuroda |
| Nagano | Nagano |
