| nirvana | Nirvana |
| NIS | Network Information Service |
| Nish | Niš |
| Nishapur | Nishapur |
| Nisporeni | Raionul Nisporeni |
| Nissan | Nissan Motors |
| Nissan Altima | Nissan Altima |
| Nissan Cherry | Nissan Cherry |
| Nissan Micra | Nissan March |
| Nissan Multi | Nissan Liberty |
| Nissan Pathfinder | Nissan Pathfinder |
| Nissan Silvia | Nissan Silvia |
| Nissan Versa | Nissan Tiida |
| nissei | niseile |
| nit-nit-picker | nit-picker |
| Niten Ichi Ryu | Hyōhō Niten Ichi-ryū |
| Niteroi | Niteroi |
| Niterói | Niterói |
| nitidamente | distinction |
| nitidez | distinction |
| Nitiren | Nichiren |
| Nitrariaceae | Sapindales |
| nitrato | nitrate |
| Nitrato de bário | Barium nitrate |
| Nitrato de lítio | Lithium nitrate |
| nitrato de potássio | saltpeter |
| nitrato peroxiacetílico | peroxyacetylnitrate |
| nitratos | nitrate |
| Nitreto de titânio | Titanium nitride |
| nitrificação | nitrification |
| nitro | niter |
| Nitroetano | Nitroethane |
| nitroglicerina | nitroglycerin |
| nitrogénio | nitrogen |
| nitrogênio | nitrogen |
| Nitrometano | Nitromethane |
| nitrosaminas | nitrosamine |
| nitroso | nitrous |
| Nitrotolueno | Mononitrotoluene |
| Nitrox | Enriched Air Nitrox |
| nitroênio | nitreen |
| Nitócris | Nitocris |
| Nitócris I | Nitocris I |
| Niue | Niue |
| Niuserré | Nyuserre Ini |
| nivelado | level |
| nivelador | equalizing |
| nivelamento | flatness |
| nivelar | level down |
| nivele | even |
| Nivelles | Nivelles |
| Nix | Siren |
| Nixon | Nixon |
| Niágara | Niagara |
| Nièvre | Nièvre |
| Niña | Niña |
| nióbio | niobium |
| Niğde | Niğde Province |
| NJ | Nj |
| Nje | Nje |
| Njord | Njord |
| NK Inter Zaprešić | NK Inter Zaprešić |
| Nkhata Bay | Nkhata Bay District |
| Nkhotakota | Nkhotakota District |
| NKVD | NKVD |
| NL | NL |
| NLQ (qualidade quase-carta) | NLQ (Near Letter Quality) |
| NLS | NLS |
| NME | NME |
| no | on |
