- Non-proliferation, arms control and disarmament in NATO
- NATO Air Command and Control System (ACCS)
- NATO Air Traffic Management Committee
- NATO Airborne Early Warning and Control Programme Management Organisation (NAPMO)
- NATO and Afghanistan
- NATO and the fight against terrorism
- New Zealand, NATO cooperation with -
- NATO Information and Documentation Centre (NIDC) in Kyiv, Ukraine
- NATO Information Office in Moscow
- NLO: NATO Liaison Office in Georgia
- NLO: NATO Liaison Office in Ukraine
- Naval operations, NATO -
- NATO Network Enabled Capability (NNEC)
- NATO Office of Resources (NOR)
- NATO-Georgia Commission (NGC)
- NATO-Russia Council (NRC)
- NATO-Ukraine Commission (NUC)
- NATO-Ukraine Joint Working Group on Defence Reform
- Nuclear forces, NATO's -
- NATO Training Mission-Iraq (NTM-I)
- NATO’s fundamental security tasks
- NATO’s relations with Ireland
- NATO’s relations with partners across the globe
- NATO Reform
- NCI Agency - The NATO Communications and Information Agency
- NATO Procurement Organisation (NPO)
- NATO Response Force, The -
- NATO Science and Technology Organization (STO)
- NATO Secretary General
- NATO Support Agency (NSPA), The -
- NACC, North Atlantic Cooperation Council (archived)
- North Atlantic Council, The -
- Nuclear Planning Group (NPG)