| National Oceanic and Atmospheric Administration | National Oceanic and Atmospheric Administration |
| National Olympic Committee | Comitê Olímpico Nacional |
| National Organization for Women | Organização Nacional das Mulheres |
| national park | parque nacional |
| National Park Service | Serviço Nacional de Parques |
| National Party | Partido Nacional |
| National Physical Laboratory | National Physical Laboratory |
| national planning | planeamento nacional |
| National Rally for Democracy | RND |
| National Reconnaissance Office | National Reconnaissance Office |
| National Religious Party | Mafdal |
| National Renewal Alliance Party | Aliança Renovadora Nacional |
| National Renewal Party | Partido Nacional Renovador |
| National Reorganization Process | Processo de Reorganização Nacional |
| National Salvation Junta | Junta de Salvação Nacional |
| National Science Foundation | National Science Foundation |
| National Science Museum of Japan | Museu Nacional de Ciência do Japão |
| National Security Agency | NSA |
| National Snow and Ice Data Center | National Snow and Ice Data Center |
| National Socialism | nazismo |
| National Socialist | nazista |
| National Socialist black metal | Black metal nacional socialista |
| National Socialist German Workers Party | Partido Nacional Socialista Alemão dos Trabalhadores |
| National Socialist Motor Corps | NSKK |
| National Socialist Movement of Chile | Movimento Nacional-Socialista do Chile |
| National sport | Esporte nacional |
| National symbol | Símbolo nacional |
| National symbols of Canada | Cultura do Canadá |
| National Syndicalists | Movimento Nacional-Sindicalista |
| National trade union center | Sindicato |
| National Transportation Safety Board | NTSB |
| National Treasure | National Treasure |
| National Union | União Nacional |
| National University of Colombia | Universidad Nacional de Colombia |
| National University of General Sarmiento | Universidad Nacional de General Sarmiento |
| National University of La Plata | Universidad Nacional de La Plata |
| National University of Singapore | Universidade Nacional de Singapura |
| Nationalencyklopedin | Nationalencyklopedin |
| nationalisation | nacionalização |
| nationalism | nacionalismo |
| nationalist | nacionalista |
| Nationalist Republican Alliance | Alianza Republicana Nacionalista |
| nationalistic | nacionalista |
| nationality | nacionalidade |
| nationalize | nacionalizar |
| Nationalmuseum | Museu Nacional de Belas-Artes da Suécia |
| Nations at Swedish universities | Studentenverbindung |
| nationwide | nacional |
| Nationwide Airlines | Nationwide Airlines |
| native | nativo |
| native (of) | originalidade |
| Native American | Povos ameríndios |
| Native Americans | Povos ameríndios |
| Native Americans in the United States | Nativos americanos nos Estados Unidos |
| Native Command Queuing | Native Command Queuing |
| Native copper | Cobre |
| native country | país de origem |
| Native Esperanto speakers | Falantes nativos do esperanto |
| native language | língua materna |
| Native of Avila | Avilés |
| Native people | Povo indígena |
| Native tongue | Língua materna |
| nativee | nativo |
| Nativity | Natividade |
| NATO | OTAN |
| NATO phonetic alphabet | Alfabeto radiotelefônico |
| Natricinae | Coluber |
| Natrix | Natrix |
| Natsuki Takaya | Natsuki Takaya |
| Natsume Sōseki | Natsume Soseki |
| Nattheim | Nattheim |
| natural | bruto |
