| Nathan Petrelli | Nathan Petrelli |
| Nathaniel | Nathaniel |
| Nathaniel Clifton | Nathaniel Clifton |
| Nathaniel Hawthorne | Nathaniel Hawthorne |
| Nathaniel Kleitman | Nathaniel Kleitman |
| Nathuram Godse | Nathuram Godse |
| natica | bottom |
| natio | native |
| Nation of Islam | Nation of Islam |
| National Advisory Committee for Aeronautics | National Advisory Committee for Aeronautics |
| National Association of Underwater Instructors | National Association of Underwater Instructors |
| National Basketball Association | National Basketball Association |
| National Basketball League | National Basketball League |
| National Broadcasting Company | NBC |
| National Center for Biotechnology Information | National Center for Biotechnology Information |
| National Collegiate Athletic Association | National Collegiate Athletic Association |
| National electrical manufacturers association | National Electrical Manufacturers Association |
| National Football Conference | National Football Conference |
| National Football League | National Football League |
| National Front | British National Front |
| National Gallery of Art | National Gallery of Art |
| National Gallery of Scotland | National Gallery of Scotland |
| National Geographic Channel HD | National Geographic Channel HD |
| National Geographic Society | National Geographic Society |
| National Health Service | National Health Service |
| National Hockey League | National Hockey League |
| National Hockey League Players Association | NHL Players Association |
| National Institute of Standards and Technology | National Institute of Standards and Technology |
| National Invitational Tournament | National Invitation Tournament |
| National Library of Medicine | United States National Library of Medicine |
| National Library of Wales | National Library of Wales |
| National Reconnaissance Office | National Reconnaissance Office |
| National Rifle Association | National Rifle Association |
| National Security Agency | National Security Agency |
| National socialist black metal | National Socialist black metal |
| National Stock Exchange of India | National Stock Exchange of India |
| National television system committee | NTSC |
