# List of acronyms: N

This list contains acronyms, initialisms, and pseudo-blends that begin with the letter N.
For the purposes of this list:
* acronym = an abbreviation pronounced as if it were a word, e.g., SARS = severe acute respiratory syndrome, pronounced to rhyme with cars
* initialism = an abbreviation pronounced wholly or partly using the names of its constituent letters, e.g., CD = compact disc, pronounced cee dee
* pseudo-blend = an abbreviation whose extra or omitted letters mean that it cannot stand as a true acronym, initialism, or portmanteau (a word formed by combining two or more words).
    (a) = acronym, e.g.: SARS – (a) severe acute respiratory syndrome
    (i) = initialism, e.g.: CD – (i) compact disc
    (p) = pseudo-blend, e.g.: UNIFEM – (p) United Nations Development Fund for Women
    (s) = symbol (none of the above, representing and pronounced as something else; for example: MHz – megahertz)
Some terms are spoken as either acronym or initialism, e.g., VoIP, pronounced both as voyp and V-O-I-P.
(Main list of acronyms)

## Contents

* Top
* N0–9 NA NB NC ND NE NF NG NH NI NJ NK NL NM NN NO NP NQ NR NS NT NU NV NW NX NY NZ
* n – (s) Nano
* N – (s) Newton – Nitrogen – North

## N0–9

* N3F – (i) National Fantasy Fan Federation

## NA

* na – (s) Nauruan language (ISO 639-1 code)
* nA – (s) Nanoampere
* Na – (s) Sodium (Latin Natrium)
* NA
** (s) Namibia (ISO 3166 digram)
** (i) Narcotics Anonymous
** National Archives
** Negative Acknowledge
* N/A
** (i) Neurotics Anonymous
** not available/applicable
* NAA – (p) N-Acetylaspartate
* NAAD – (i) North American Air Defense
* NAAFI
** (a) Navy, Army and Air Force Institute (UK)
** (a) No Ambition And Fuckall Interest (RSA army slang)
* NAAK – (a) Mark I NAAK, Nerve Agent Antidote Kit
* NAACP – (i) National Association for the Advancement of Colored People ("N double-A CP")
* NAAQS – (a) National Ambient Air Quality Standards
* NAAWS – (i) NATO Anti-Air Warfare System
* NABCI – (a) North American Bird Conservation Initiative ("nab-see")
* NAC
** (i/a) National Agency Check
** U.S. Naval Avionics Center
** U.S. Navy Advanced Concepts
** NOAD ADVENDO Combinatie, the full name of the Dutch football club NAC Breda
** North Atlantic Council
** Northern Area Command
* NACA – (i) (U.S.) National Advisory Committee for Aeronautics (1915–1958, became NASA)
* NACC – (i) North Atlantic Cooperation Council
* NACISA – (a) NATO Communications and Information Systems Agency
* NACMA – (p) NATO Air Command and Control System Management Agency
* NACRA – (a) North America Caribbean Rugby Association (more specifically rugby union), a former name of Rugby Americas North
* NAD – (s) Namibian dollar (ISO 4217 currency code)
* NAEC – (i) U.S. Naval Air Engineering Center
* NAF
** (a) NATO Architecture Framework
** (i) Naval Air Facility
* NAFLD – (i) NonAlcoholic Fatty Liver Disease
* NAFO – (a) Northwest Atlantic Fisheries Organization
* NAFERA – (a) Native American Free Exercise of Religion Act
* NAFTA – (a) North American Free Trade Agreement
* NAGPRA – (a) Native American Graves Protection and Repatriation Act
* NAI
** (i) Named Area of Interest
** Network Access Identifier
* NAICS – (a) North American Industry Classification System
* NAIL – (i) Neurotics Anonymous
* NAILS – (a) National Airspace Integrated Logistics System
* NAIRU – (a) Non Accelerating Inflation Rate of Unemployment
* NAK – (p) Negative Acknowledge
* NAM – (s) Namibia (ISO 3166 trigram)
* NAMBLA – (a) North American Man-Boy Love Association
* NAMRL – (i) Naval Aerospace Medical Research Laboratory
* NaN – (i) Not A Number (computing)
* NANP – (i) North American Numbering Plan (telephone)
* NAO – (i) UK National Audit Office
* NAPDD – (i) Non-Acquisition Program Definition Document ("nap-dee-dee")
* NAPS – (a) Navy Acquisition Procedures Supplement
* NARA – (i) (U.S.) National Archives and Records Administration
* NARAL – (a) National Abortion Rights Action League
* NARDAC – (a) Naval Regional Data Automation Center
* NARDIC – (a) U.S. Navy Acquisition Research and Development Information Center
* NARP – (a) Non-Athletic Regular Person
* NARPV – (i) National Association for Remotely Piloted Vehicles
* NAS
** (i) National Academy of Sciences
** National Air Space
** National Audubon Society
** Naval Air Station
** New Attack Submarine
* NASA
** (a) National Aeronautics and Space Administration
** North American Saxophone Alliance
* NASB – (i) New American Standard Bible
* NASCAR – (a) National Association for Stock Car Auto Racing
* NASDAQ – (a) National Association of Securities Dealers Automated Quotations
* NASED – (a) National Association of State Election Directors
* NASH – (a) Non-Alcoholic Steatohepatitis
* NASP
** (p) National Aerospace Plane
** (i) National Archery in the Schools Program
* NASS – (a) National Association of Secretaries of State
* NASUWT - National Association of Schoolmasters / Union of Women Teachers (UK trade union)
* NatGeo - (a) National Geographic
* NATO
** (a) National Association of Theatre Owners
** North Atlantic Treaty Organization
* nau – (s) Nauruan language (ISO 639-2 code)
* NaUKMA – (p) National University of Kyiv-Mohyla Academy
* nav – (s) Navajo language (ISO 639-2 code)
* NAV – (p) Navigation[al]
* NAVCAMS – (p) Naval Communications Area Master Station
* NAVCC – (p) National Audio-Visual Conservation Center
* NAVCC (Navy) – (p) Navy Component Commander
* NAVCENT – (p) Naval Forces U.S. Central Command
* NAVDAC – (p) Naval Data Automation Command
* NAVEUR – (p) Naval Forces U.S. European Command
* NAVFE – (p) U.S. Naval Forces, Far East
* NAVFOR – (p) Naval Force
* NAVMACS – (p) Naval Modular Automatic Communication Subsystem
* NAVNET – (p) Navy Network
* NAVS – (a) Non-Cooperative Airborne Vector Scoring
* NAVSAT – (p) Navigation Satellite
* NAVSPACECOM – (p) U.S. Navy Space Command
* NAVSPASUR – (p) U.S. Naval Space Surveillance System
* NAVSTAR – (p) Navigation Satellite Timing And Ranging
* NAVTACNET – (p) Navy Tactical Network
* NAWC – (i) U.S. Naval Air Warfare Center
* NAWIRA – (a) North America and West Indies Rugby Association, the original name of the organization now known as Rugby Americas North
* NAWMP – (a) North American Waterfowl Management Plan ("gnaw-wump")

## NB

* nb – (s) Norwegian Bokmål language (ISO 639-1 code)
* Nb – (s) Niobium
* NB – (s) New Brunswick (postal symbol) – (i) nota bene (Latin, "mark well")
* NBA – (i) National Basketball Association
* NBACC – (i) U.S. National Biodefense Analysis and Countermeasures Center ("enn-back")
* NBC – (i) National Broadcasting Corporation – Nuclear, Biological, and Chemical
* NBCRS – (i) NBC (Nuclear, Biological, and Chemical) Reconnaissance System
* NBIC – (i) Nanotechnology, Biotechnology, Information Technology, Cognitive Science
* nbl – (s) Southern Ndebele language (ISO 639-2 code)
* NBL – (a) National Basketball League (Australia)
* NBT – (p) Nitroblue tetrazolium (assay)

## NC

* nC – (s) Nanocoulomb
* NC
** (i) Network Computer
** (s) New Caledonia (ISO 3166 digram)
** (i) Node Center
** Nonconsensual
** Normally Closed
** (s) North Carolina (postal symbol)
* NCA – (i) National Command Authority
* NC3A or NC$^3$A – (i) NATO Consultation, Command and Control Agency
* NCAA – (i) National Collegiate Athletic Association ("NC double A")
* NCAR – (i) U.S. National Center for Atmospheric Research
* NCB – (i) National Codification Bureau
* NCCAM – (i) U.S. National Center for Complementary and Alternative Medicine
* NCCUSL – (i) National Conference of Commissioners on Uniform State Laws (U.S.)
* NCDDR – (i) U.S. National Center for the Dissemination of Disability Research
* NCES
** (i) U.S. National Center for Education Statistics
** Net-Centric Enterprise Services
* NCI – (i) U.S. National Cancer Institute
* NCIS
** (i) National Criminal Intelligence Service (British)
** Naval Criminal Investigative Service (U.S. Navy; see also NCIS, a U.S. TV series based on this unit)
* NCL – (s) New Caledonia (ISO 3166 trigram)
* NCLR – (i) National Council of La Raza
* NCMO – (i) No Commitment Make Out
* NCND
** (i) Noncircumvention and Nondisclosure
** (i) Neither Confirm Nor Deny
* NCO – (i) Noncommissioned Officer
* NCP – (i) Net Contracted Purchases
* NCR – (i) National Cash Register Co.
* NCTR – (i) Noncooperative Target Recognition
* NCW – (i) Network Centric Warfare

## ND

* nd – (s) Northern Ndebele language (ISO 639-1 code)
* Nd – (s) Neodymium
* N.D. – (i) Nobilis Domina (noble woman)
* ND
** (i) Nondisclosure
** (s) North Dakota (postal symbol)
* NDA - (i) Non-Disclosure Agreement
* NDAA – (i) U.S. National Defense Authorization Act
* NDBP – (i) Non-Departmental Public Body (Scotland)
* NDC - (i) National Drug Code
* NDCC – (i) New Directions Counseling Center (Concord, California)
* nde – (s) Northern Ndebele language (ISO 639-2 code)
* NDH
** (i) Neue Deutsche Härte (German, "new German hardness"—heavy metal genre)
** Nezavisna Država Hrvatska (Croatian, "Independent State of Croatia"—Nazi puppet state)
* ndo – (s) Ndonga language (ISO 639-2 code)
* N-dof or NDOF – (i) Number of Degrees of Freedom
* NDP – (i) New Democratic Party (Canada)
* NDS – Nintendo DS
* NDU – (i) National Defense University (Washington, DC)

## NE

* ne – (s) Nepali language (ISO 639-1 code)
* Ne – (s) Neon
* NE
** (s) Nebraska (postal symbol)
** Niger (ISO 3166 digram)
** (i) North-East
* NEA
** (i) National Education Association (U.S. labor union)
** Near-Earth Asteroid
** Nuclear Energy Agency (OECD)
* NEAT
** Near-Earth Asteroid Tracking - (a)
** National Emergency Access Target (a) (Au Health)
* NEC
** (i) Network-enabled capability
** Nijmegen Eendracht Combinatie (Dutch, "Nijmegen Unity Combination"; football club formed by the 1910 merger of the Nijmegen and Eendracht clubs)
** Nippon Electric Company, the original English-language name of the company now known as NEC
** (p) Northeast Conference (U.S. college sports)
* NED – (s) Netherlands (IOC and FIFA trigram, but not ISO 3166)
* NECTEC – (a) National Electronics and Computer Technology Center (Thailand)
* NEI
** (i) National Eye Institute
** Not Enough Information
** Nuclear Energy Institute
* NEIC (i)
** U.S. National Earthquake Information Center
** National Economic Intelligence Committee (Nigeria)
** National Energy Information Center (U.S. DOE)
** National Enforcement Investigations Center (U.S. EPA)
* nem con – (p) nemine contradicente (Latin, "no one contradicting")
* nem diss – (p) nemine dissentiente (Latin, "no one dissenting")
* NEMS – (i) National Energy Modeling System (USDOE-EIA)
* NEO
** (i) Near-Earth Object
** Non-combatant Evacuation Operations
* nep – (s) Nepali language (ISO 639-2 code)
* NEPA – (a) National Environmental Policy Act
* NER – (s) Niger (ISO 3166 trigram)
* NERF - (a) Non-Expanding Recreational Foam
* NERICA – (p) New Rice for Africa
* NESDIS – (a) National Environmental Satellite, Data and Information Service
* NESP – (i) NSA/CSS Enterprise Standards Program
* NESS-T – (p) Near-Earth Space Surveillance – Terrestrial project
* NET
** (i) National Educational Television
** (i/a) NCAA Evaluation Tool, a metric used in the NCAA Division I men's and women's basketball tournament selection process
* NETCU – (i) (UK) National Extremism Tactical Co-ordination Unit
* NETL – (a) (US) National Energy Technology Laboratory
* NETWARS – (p) Network Warfare Simulation
* NEWHA – (i) New England Women's Hockey Alliance
* NEWS
** (a) Navy Electronic Warfare Simulator
** North, East, West, South
* NEX – (p) Navy EXchange

## NF

* nF – (s) Nanofarad
* NF
** (s) Newfoundland (and Labrador) (obsolete postal code, replaced by NL)
** Norfolk Island (ISO 3166 digram)
* NFA
** (i) (U.S.) National Firearms Act (often used to refer to the guns and accessories regulated under this law)
** No-Fire Area
* NFC
** (i) National Football Conference
** Near-field communication
* NFER – (i) National Foundation for Educational Research
* NFG – (i) No F**king Good
* NFHS – (i) National Federation of State High School Associations
* NFI – (i) Not F****** Interested
* NFK – (s) Norfolk Island (ISO 3166 trigram)
* NFL
** (i) National Football League
** National Forensic League, original name of the National Speech and Debate Association
** No-Fire Line
* Nfld – (p) Newfoundland
* NFPA – (a) National Fluid Power Association (United States)
* NFT
** (p) Neurofibrillary tangle
** (i) No Further Text
** Non-fungible token
* NFS
** (i) Network File System

## NG

* ng – (s) Nanogram – Ndonga language (ISO 639-1 code)
* NG
** (i) Natural Gas
** Next Generation
** (s) Niger (FIPS 10-4 country code)
** Nigeria (ISO 3166 digram)
* NGA
** (i) National Geospatial-Intelligence Agency
** (s) Nigeria (ISO 3166 trigram)
* NGH – Northern General Hospital
* ngl – (i) Not gonna lie
* NGATS – (i) New Generation Army Targetry System
* NGIC – (a) National Ground Intelligence Center ("Injick")
* NGN – (s) Nigerian naira (ISO 4217 currency code)
* NGO – (i) non-governmental organization
* NGR – (s) Nigeria (IOC trigram, but not ISO 3166 or FIFA)
* NGS – (i) Naval Gunfire Support

## NH

* nH – (s) Nanohenry
* NH – (s) New Hampshire (postal symbol) – New Hebrides (ISO 3166 digram; obsolete 1980) – Vanuatu (FIPS 10-4 country code; from New Hebrides)
* N.H. – (i) Nobilis Homo (noble man)
* NHANES – (i) National Health and Nutrition Examination Survey
* NHB – (s) New Hebrides (ISO 3166 trigram; obsolete 1980)
* NHB – (i) No holds barred
* NHL – (i) National Hockey League
* NHO – (i) Næringslivets Hovedorganisasjon (Confederation of Norwegian Enterprises, a Norwegian employers' organisation)
* NHRA – (i) National Hot Rod Association
* NHS – (i) National Health Service (UK)

## NI

* Ni – (s) Nickel
* NI
** (s) Nicaragua (ISO 3166 digram)
** Nigeria (FIPS 10-4 country code)
* NIAAA – (i) U.S. National Institute on Alcohol Abuse and Alcoholism
* NIAID – (a) National Institute of Allergies and Infectious Disease
* NIAG – (a) NATO Industrial Advisory Group
* NIAMD – (i) National Institute of Arthritis and Musculoskeletal Diseases
* NIB – (i) New In Box (Internet auction/trading listings)
* NIBP – (i) Non-invasive blood pressure monitor
* NIC
** (a) Network Interface Card
** (s) Nicaragua (ISO 3166 trigram)
* NicA – (i) Nicotine Anonymous
* NICAP – (a) National Investigations Committee on Aerial Phenomena
* NICE – (p) UK. National Institute for Health and Clinical Excellence
* NICHD – National Institute of Child Health and Human Development
* NICP – (i) National Inventory Control Point
* NIDDK – (i) National Institute of Diabetes and Digestive and Kidney Diseases
* NIDRR – (i) National Institute on Disability Research and Rehabilitation
* NIEHS – (i) National Institute of Environmental Health Sciences
* NIG – (s) Niger (IOC and FIFA trigram, but not ISO 3166)
* NIH
** (i) National Institutes of Health
** Not Invented Here
* NIIN – (i) National Item Identification Number
* NIL
** (i) Name, image, and likeness (referring to U.S. student athlete compensation)
** (p) Nanoimprint lithography
** (i) Nomina im Indogermanischen Lexikon (German, "Nominals in the Indo-European Lexicon") – etymological dictionary of Proto-Indo-European nominals
* NIMA – (a) National Imagery and Mapping Agency (became NGA)
* NIMBY – (a) Not In My Back Yard (See NOME)
* NIMG – (i) Not In My Generation
* NiMH – (p) nickel metal hydride ("Ni" is the chemical symbol for nickel)
* NIMH
** (i) National Institute of Medical Herbalists
** National Institute of Mental Health
* NIN – (i) Nine Inch Nails (band)
* NIO – (s) Nicaraguayan cordoba oro (ISO 4217 currency code)
* NIOSH – (a) National Institute for Occupational Safety and Health (U.S.)
* NIPR – (i) National Institute of Polar Research (Japan)
* NIPT - Non-Invasive Prenatal Testing
* NIR – (s) Northern Ireland (FIFA trigram; not eligible for an ISO 3166 or IOC trigram)
* NISAC – (a) U.S. National Infrastructure Simulation and Analysis Center
* NISCAP – (a) NSA Information System Certification and Accreditation Program
* NISER – (i) National Institute of Science Education and Research
* NIST – (a/i) National Institute of Standards and Technology
* NIT
** (i) National Invitation Tournament (U.S. college basketball)
** (i) National Institutes of Technology (India)
* NITFS – (i) National Imagery Transmission Format Standard
* NIU – (s) Niue (ISO 3166 trigram)
* NIV
** (i) New International Version (Bible translation)
** Non-invasive ventilation

## NJ

* nJ – (s) Nanojoule
* NJ – (s) New Jersey (postal symbol)
* NJHS – (s) National Junior Honor Society
* NJPW – (i) New Japan Pro-Wrestling

## NK

* nK – (s) Nanokelvin
* NKA – No Known Allergies
* N/K/A – Now Known As
* NKJV – (i) New King James Version (Bible translation)
* NKVD – (i) Narodnyi Komissariat Vnutrennikh Del (Russian "People's Commissariat of Internal Affairs") (1934–1954)

## NL

* nl – (s) Dutch language (ISO 639-1 code)
* nL – (s) Nanolitre
* NL
** (s) Netherlands (ISO 3166 and FIPS 10-4 country code digram)
** Newfoundland and Labrador (postal symbol)
* NLB – (i) Non-Linear Battlefield
* nld – (s) Dutch language (ISO 639-2 code)
* NLD – (s) Netherlands (ISO 3166 trigram)
* NLF – (i) National Liberation Front (disambiguation)
* NLL – (i) National Lacrosse League
* NLIC - (p) NetLicensing (license file extension)
* NLOS-LS – (i) Non Line Of Sight-Launch System
* NLP
** (i) Natural Language Processing
** Neuro-Linguistic Programming (pseudoscience)
* NLW – (i) Non-Lethal Weapon

## NM

* nm – (s) nanometer
* nm, NM – Nautical mile
* N·m, Nm – Newton meter
* NM – (s) New Mexico (postal symbol)
* NMCI – (i) Navy Marine Corps Intranet
* NMCS – (i) Not Mission Capable Supply (SM&R code)
* NMD – (i) U.S. National Missile Defense
* NMN – (i) No middle name
* NMOS – (i/a) N-type/Negative Metal-Oxide-Semiconductor transistor ("enn-moss")
* NMSG – (i) NATO Modelling and Simulation Group
* NMR – (i) Nuclear Magnetic Resonance
* NMHNFG – (i) Not Made Here, No Fucking Good

## NN

* nn – (s) Norwegian Nynorsk language (ISO 639-1 code)
* nN – (s) Nanonewton
* NNW – (i) North North-East
* nno – (s) Norwegian Nynorsk language (ISO 639-2 code)
* NNSA – (i) U.S. National Nuclear Security Administration
* NNW – (i) North North-West

## NO

* no – (s) Norwegian language (ISO 639-1 code)
* No – (s) Nobelium
* NO
** (s) Nitric Oxide
** (i) Normally Open
** (s) Norway (ISO 3166 and FIPS 10-4 country code digram)
* NOAA – (a) U.S. National Oceanic and Atmospheric Administration
* NOAF – (i) Norwegian Air Force
* NOAO – (i) National Optical Astronomy Observatory
* nob – (s) Norwegian Bokmål language (ISO 639-2 code)
* NOC – (i) UK. National Oceanography Centre
* NODEF – (a) NATO Oceanographic Data Exchange Format
* No-FEAR – (p) Notification and Federal Employee Antidiscrimination Retaliation Act (2002)
* NOK – (s) Norwegian krone (ISO 4217 currency code)
* NOLA – (p) New Orleans, Louisiana (LA is the official postal code for Louisiana)
* NOGI – (a) New Orleans Grande Isle (award for diving)
* NOLF – (i) Navy OutLying Field
* NOM – (i) Novus Ordo Missae or New Ordinary of the Mass (sometimes abbreviated to simply "NO")
* NOME – Not on Mars Either
* NoMBO – (p) Non-mine, Mine-like Bottom Object
* NOME – Not on Mars Either (see NIMBY)
* NOPA – (i) National Office Products Alliance – National Office Products Association
* nor – (s) Norwegian language (ISO 639-2 code)
* NOR – (s) Norway (ISO 3166 trigram)
* NORAD – (p) North American Aerospace Defense Command
* NORCECA – (p) North, Central America and Caribbean Volleyball Confederation
* NORELPREF – No religious preference
* NORML – (a) National Organization for the Reform of Marijuana Laws ("normal")
* NORTHAG – (p) Northern Army Group
* NOS
** (i) Network Operating System
** New Old Stock (Internet auction/trading listings)
** Nitric Oxide Synthase (enzyme)
* NOSA – (i) NATO OSI Security Architecture
* NOTAFLOF – (a) No One Turned Away For Lack Of Funds
* NOTAM – (p) Notice to Airmen
* NOW – (a) National Organization for Women

## NP

* Np
** (p) Neap tide (nautical charts)
** (s) Neptunium
* NP
** (s) National Permit (authorization used in India to allow trucks to go anywhere in the nation)
** Nepal (ISO 3166 and FIPS 10-4 country code digram)
* NPB – (i) Nippon Professional Baseball
* NPC
** (i) National Postgraduate Committee
** National Provincial Championship (New Zealand rugby competition)
** Navigation Planning Chart
** Non-Player Character (role-playing games)
* NPCS – (i) Non-Passenger Coaching stock (in Railways)
* NPD – (i) Nationaldemokratische Partei Deutschlands (German)
* NPDI – (i) New Product Development and Introduction
* NPG – (i) Needline/Network Participation Group
* NPH – (i) Normal Pressure Hydrocephalus
* NPL
** (i) National Priorities List
** (s) Nepal (ISO 3166 trigram)
* NPPU - Nose Personal Protection Unit (copper nose insert)
* NPOV – (i) Neutral Point Of View
* NPR
** (i) National Public Radio
** (s) Nepalese rupee (ISO 4217 currency code)

## NQ

* NQ – (s) Dronning Maud Land (ISO 3166 digram; obsolete 1983)
* NQOCD – (i) Not Quite Our Class, Dear (or Darling). (Upper-class English slang)
* NPO – nothing by mouth

## NR

* nr – (s) Southern Ndebele language (ISO 639-1 code)
* NR – (s) Nauru (ISO 3166 and FIPS 10-4 country code digram)
* NRA
** (i) National Republican Army (Russia)
** National Revolutionary Army (China)
** National Rifle Association (disambiguation)
* NRAO – (i) National Radio Astronomy Observatory
* NRC
** (i) National Register of Citizens (India)
** National Research Council (U.S.)
** Nuclear Regulatory Commission (U.S.)
* NRDC – (i) (U.S.) Natural Resources Defense Council
* NREL – (i) U.S. National Renewable Energy Laboratory
* NRK – (p) Norsk Rikskringkasting (Norwegian Broadcasting Corporation)
* NRLA – (i) New Railway Link through the Alps
* NRMP – (i) National Resident Matching Program (U.S. medicine)
* NRO – (i) U.S. National Reconnaissance Office
* NRT – (i) Near Real Time
* NRTA
** (i) National Retail Tenants Association
** National Retired Teachers Association
** Northwest Regional Transmission Association
* NRU – (s) Nauru (ISO 3166 trigram)

## NS

* ns – (s) Nanosecond
* nS – (s) Nanosiemens
* NS
** (s) Norfolk Southern Railway (AAR reporting mark)
** Nova Scotia (postal symbol)
** Suriname (FIPS 10-4 country code)
* NSA
** (i) U.S. National Security Agency
** Naval Support Activity
** No Strings Attached
* NSABB – (i) National Science Advisory Board for Biosecurity
* NSAID – (i) Non-Steroidal Anti-Inflammatory Drug
* NSB – (i) Norges Statsbaner (Norwegian State Railways)
* NSBM – (i) National Socialist black metal
* NSC – National Security Council
* NSDA – (i) National Speech and Debate Association (US)
* NSDAP – (i) Nationalsozialistische Deutsche Arbeiterpartei (German: "German National Socialist Workers Party", the formal name of the Nazi Party)
* NSDL – (i) National Science Digital Library (US)
* NSG – (i) National System for Geospatial-Intelligence
* NSN – (i) National Stock Number
* NSNA – (i) National Student Nurses' Association
* NSO – (i) National Standardization Office (ABCA)
* NSS – (i) (U.S.) Naval Simulation System
* NST – (i) (UK) Nimrod Software Team
* NSTAC – (i) National Security Telecommunications Advisory Committee
* NSV – (i) Nikitin-Sokolov-Volkov heavy machine gun (Russian НСВ Никитина-Соколова-Волкова) ru:ПулеметНСВ-12,7 "Утес"
* NSW – (i) New South Wales (postal symbol)

## NT

* N/T – (Aa) No text
* nT – (s) Nanotesla
* NT
** (i) National Trust (UK)
** (s) Saudi–Iraqi neutral zone (ISO 3166 digram; obsolete 1993)
** (i) New Technology (Windows NT)
** (s) Northern Territory (Australia) (postal symbol)
** Northwest Territories (Canada) (postal symbol)
* NTC
** (i) National Training Center
** Negative Temperature Coefficient (thermistor)
* NTDS – (i) Naval Tactical Data System
* NTP – (i) Network Time Protocol
* NTR – (i) Network Time Reference
* NTRA – (i) National Thoroughbred Racing Association
* NTSB – (i) National Transportation Safety Board
* NTSC – (i) National Television Standards Committee (colloquially, Never Twice the Same Color)
* (i) (Internet Abbreviation:) Nothing To See Here
* NTV – (i) Non-Tactical Vehicle
* NTY – (i) (Internet Abbreviations:) Not Tested Yet; (Alternatively) No Thank You
* NTZ – (s) Iraq-Saudi Arabia Neutral Zone (ISO 3166 trigram; obsolete 1993)

## NU

* NU
** (s) Nicaragua (FIPS 10-4 country code)
** Niue (ISO 3166 digram)
** Nunavut (postal symbol)
* NUI – (a) No user interface ("noo-ey")
* NUL
** (i) Null character (ASCII code of control character)
** National Urban League
* NUTS – (a) Nuclear Utilization Target Selection
* NUWC – (i) U.S. Naval Undersea Warfare Center

## NV

* nv – (s) Navajo language (ISO 639-1 code)
* nV – (s) Nanovolt
* NV
** (i) Naamloze vennootschap (Dutch, "innominate partnership" or "anonymous venture"; i.e. a public limited-liability company)
** (s) Nevada (postal symbol)
* NVEOL – (i) Night Vision and Electro-Optics Laboratory
* NVESD – (i) CERDEC Night Vision and Electronic Sensors Directorate, Fort Belvoir, Virginia
* NVG – (i) Night Vision Goggles
* NVL – (i) Night Vision Laboratory

## NW

* nW – (s) Nanowatt
* NW – (s) North-West
* NW – (i) Nuclear Weapon
* NWA – (i) National Wrestling Alliance
* NWF – (i) National Wildlife Federation
* NWFZ – (i) Nuclear-Weapon-Free Zone
* NWHN – (i) U.S. National Women's Health Network
* nWo – (i) New World Order (see article for explanation of idiosyncratic capitalization)
* NWOAHM – (i) New Wave of American Heavy Metal
* NWOBHM – (i) New wave of British heavy metal (sometimes pronounced /nəˈwɒbəm/ as if it were an acronym)
* NWRA – (i) National Wildlife Rehabilitators Association
* NWSL - (i) National Women's Soccer League (U.S.)
* NWT – (i) North-West Territories

## NX

* NX
** (p) Part of computer memory marked as "no execute"
** (i) Automobile made by Nissan
** (s) unit of illuminance
** (p) National Express
** Net exports
* NXA – (i) 21st arcade game in the Pump It Up series
* NXD – (p) Native XML
* NXE – (i) New Xbox Experience
* NXG – (p) New Cross Gate station
* NXL – (i) National XBall League
* NXN – (p) Nike Cross Nationals
* NXP – (p) "Next Experience" Semiconductors

## NY

* ny – (s) Chichewa language (ISO 639-1 code)
* NY – (s) New York (postal symbol)
* nya – (s) Chichewa language (ISO 639-2 code)
* NYHA – (i) New York Heart Association
* NYO – (i) National Youth Orchestra of Great Britain
* NYRA
** (i) National Youth Rights Association
** (a) New York Racing Association (horse racing)
* NYSE – (i) New York Stock Exchange
* NYT (disambiguation) – (i) The New York Times

## NZ

* NZ – (s) New Zealand (ISO 3166 and FIPS 10-4 country code digram)
* NZC – (i) New Zealand Cricket
* NZD – (s) New Zealand dollar (ISO 4217 currency code)
* NZL – (s) New Zealand (ISO 3166 trigram)
* NzL – Noze looan (online/event listings)
* NZOSS – (i) New Zealand Open Source Society
* NZR
** (i) New Zealand Railways
** New Zealand Rugby (governing body for rugby union)
* NZRU – (i) New Zealand Rugby Union, the former name of the organisation now known as New Zealand Rugby