| National Center for Supercomputing Applications | National Center for Supercomputing Applications |
| National Collegiate Athletic Association | National Collegiate Athletic Association |
| National Democratic Alliance | Nationale Demokratische Allianz |
| National Democratic Congress | National Democratic Congress |
| National Football League | National Football League |
| National Front | British National Front |
| National Gallery | National Gallery |
| National Geographic | National Geographic Society |
| National Hockey Association | National Hockey Association |
| National Hockey League | National Hockey League |
| National Institute of Standards and Technology | National Institute of Standards and Technology |
| National League | National League |
| National Oceanic and Atmospheric Administration | National Oceanic and Atmospheric Administration |
| National Organization for Women | National Organization for Women |
| National Party | Nationalpartei |
| National Portrait Gallery | National Portrait Gallery |
| National Public Radio | National Public Radio |
| National Rifle Association | National Rifle Association |
| National Security Agency | National Security Agency |
| National Socialist Black Metal | National Socialist Black Metal |
| National Space Research and Development Agency | National Space Research and Development Agency |
| National transportation safety board | National Transportation Safety Board |
| National Treasure | Das Vermächtnis der Tempelritter |
| National Trust for Places of Historic Interest or Natural Beauty | The National Trust |
| National University of Laos | Nationaluniversität Laos |
| national- | national |
| National-Bolsjevikiska Partiet | Nationalbolschewistische Partei Russlands |
| National-bolsjevism | Nationalbolschewismus |
| Nationalarena | Nationalstadion |
| Nationalbolsjevikiska partiet | Nationalbolschewistische Partei Russlands |
| Nationalbolsjevism | Nationalbolschewismus |
| Nationaldag | Nationalfeiertag |
| Nationaldemokraterna | Nationaldemokraterna |
| Nationale Volksarmee | Nationale Volksarmee |
