| Al Najaf International Airport | NJF | Najaf | IQ |
| Albano Machado Airport | NOV | Huambo | AO |
| Alykel International Airport | NSK | Norilsk | RU |
| Annecy Meythet airport | NCY | Annecy | FR |
| Annobón Airport | NBN | San Antonio de Palé | GQ |
| Bagan Airport | NYU | Nyaung U | MM |
| Begishevo Airport | NBC | Nizhnekamsk | RU |
| Benito Salas Airport | NVA | Neiva | CO |
| Changbaishan Airport | NBS | Baishan | CN |
| Chenega Bay Airport | NCN | Chenega | US |
| Chubu Centrair International Airport | NGO | Tokoname | JP |
| Chulman Airport | NER | Neryungri | RU |
| Connemara Regional Airport | NNR | Inverin | IE |
| Cornwall Airport Newquay | NQY | Newquay | GB |
| Darnley Island Airport | NLF | Darnley Island | AU |
| Diori Hamani International Airport | NIM | Niamey | NE |
| Dr. Antonio Agostinho Neto International Airport | NBJ | Luanda (Ícolo e Bengo) | AO |
| Dr. Babasaheb Ambedkar International Airport | NAG | Nagpur | IN |
| Enfidha - Hammamet International Airport | NBE | Enfidha | TN |
| Felipe Ángeles International Airport | NLU | Mexico City | MX |
| Hawke's Bay Airport | NPE | Napier | NZ |
| Ireland West Airport Knock | NOC | Charlestown | IE |
| Jomo Kenyatta International Airport | NBO | Nairobi | KE |
| José Aponte de la Torre Airport | NRR | Ceiba | PR |
| Kuini Lavenia Airport | NTT | Niuatoputapu | TO |
| La Tontouta International Airport | NOU | Nouméa (La Tontouta) | NC |
| Lynden Pindling International Airport | NAS | Nassau | BS |
| Maafaru International Airport | NMF | Noonu Atoll | MV |
| Manzhouli Xijiao Airport | NZH | Manzhouli | CN |
| Maria Reiche Neuman Airport | NZC | Nazca | PE |
| Ministro Victor Konder International Airport | NVT | Navegantes | BR |
| N'Djamena International Airport | NDJ | N'Djamena | TD |
| N'Gaoundéré Airport | NGE | N'Gaoundéré | CM |
| Nadi International Airport | NAN | Nadi | FJ |
| Nador Al Aaroui International Airport | NDR | Al Aaroui | MA |
| Nadym Airport | NYM | Nadym | RU |
| Nagasaki Airport | NGS | Nagasaki | JP |
| Nagoya Airport / JASDF Komaki Air Base | NKM | Nagoya | JP |
| Naha Airport | NAH | Tabukan Utara, Sangihe Islands | ID |
| Naiu Airport | NIU | Naiu Atoll | PF |
| Nakhchivan International Airport | NAJ | Nakhchivan | AZ |
| Nakhon Si Thammarat Airport | NST | Nakhon Si Thammarat | TH |
| Nalchik Airport | NAL | Nalchik | RU |
| Namangan International Airport | NMA | Namangan | UZ |
| Namniwel Airport | NAM | Namniwel | ID |
| Nan Airport | NNT | — | TH |
| Nanchong Gaoping Airport | NAO | Nanchong (Gaoping) | CN |
| Nanded Airport | NDC | Nanded | IN |
| Nanga Pinoh Airport | NPO | Nanga Pinoh-Borneo Island | ID |
| Nanjing Lukou International Airport | NKG | Nanjing | CN |
| Nanning Wuxu International Airport | NNG | Nanning (Jiangnan) | CN |
| Nantes Atlantique Airport | NTE | Nantes | FR |
| Nantong Xingdong International Airport | NTG | Nantong (Tongzhou) | CN |
| Nanyang Jiangying Airport | NNY | Nanyang (Wancheng) | CN |
| Nanyuki Civil Airport | NYK | Gathiuru | KE |
| Naples International Airport | NAP | Napoli | IT |
| Napuka Island Airport | NAU | Napuka Island | PF |
| Narathiwat Airport | NAW | — | TH |
| Narita International Airport | NRT | Narita | JP |
| Narrabri Airport | NAA | Narrabri | AU |
| Narrandera Airport | NRA | Narrandera | AU |
| Naryan Mar Airport | NNM | Naryan Mar | RU |
| Navi Mumbai International Airport | NMI | Navi Mumbai | IN |
| Navoi International Airport | NVI | Navoi | UZ |
| Nay Pyi Taw International Airport | NYT | Naypyitaw | MM |
| Necochea Airport | NEC | Necochea | AR |
| Nefteyugansk Airport | NFG | Nefteyugansk | RU |
| Nelson Airport | NSN | Nelson | NZ |
| Nelson Lagoon Airport | NLG | Nelson Lagoon | US |
| Neom Bay Airport | NUM | Sharma | SA |
| Nevşehir Kapadokya Airport | NAV | Nevşehir | TR |
| New Plymouth Airport | NPL | New Plymouth | NZ |
| Newcastle Airport | NTL | Williamtown | AU |
| Newcastle International Airport | NCL | Newcastle upon Tyne, Tyne and Wear | GB |
| Newport State Airport | NPT | Newport | US |
| Ngari Gunsa Airport | NGQ | Shiquanhe | CN |
| Ngau Airport | NGI | Ngau | FJ |
| Nice-Côte d'Azur Airport | NCE | Nice, Alpes-Maritimes | FR |
| Nightmute Airport | NME | Nightmute | US |
| Nikolai Airport | NIB | Nikolai | US |
| Nikolayevsk-na-Amure Airport | NLI | Nikolayevsk-na-Amure Airport | RU |
| Ningbo Lishe International Airport | NGB | Ningbo | CN |
| Ninglang Luguhu Airport | NLH | Ninglang | CN |
| Nizhneangarsk International Airport | NZG | Nizhneangarsk | RU |
| Nizhnevartovsk Airport | NJC | Nizhnevartovsk | RU |
| Nogliki Airport | NGK | Nogliki | RU |
| Norden-Norddeich Airport | NOD | Norddeich | DE |
| Norderney Airport | NRD | Norderney | DE |
| Norfolk Island International Airport | NLK | Burnt Pine | NF |
| Normanton Airport | NTN | Normanton | AU |
| Norrköping Airport | NRK | Norrköping | SE |
| Norsup Airport | NUS | Norsup | VU |
| North Caicos Airport | NCA | North Caicos | TC |
| North Ronaldsay Airport | NRL | North Ronaldsay | GB |
| Norwich Airport | NWI | Norwich, Norfolk | GB |
| Nosara Airport | NOB | Nicoya | CR |
| Nosy Be International Airport | NOS | Nosy Be | MG |
| Noto Satoyama Airport | NTQ | Wajima | JP |
| Nouadhibou International Airport | NDB | Nouadhibou | MR |
| Nouakchott–Oumtounsy International Airport | NKC | Nouakchott | MR |
| Novy Urengoy Airport | NUX | Novy Urengoy | RU |
| Nowshahr Airport | NSH | Nowshahr | IR |
| Noyabrsk Airport | NOJ | Noyabrsk | RU |
| Nuiqsut Airport | NUI | Nuiqsut | US |
| Nuku Hiva Airport | NHV | Nuku Hiva | PF |
| Nukus International Airport | NCU | Nukus | UZ |
| Nulato Airport | NUL | Nulato | US |
| Nunapitchuk Airport | NUP | Nunapitchuk | US |
| Nuremberg Airport | NUE | Nuremberg | DE |
| Nursultan Nazarbayev International Airport | NQZ | Astana | KZ |
| Nyagan Airport | NYA | Nyagan | RU |
| Otaki Airport | — | Otaki | NZ |
| Pitt Island Aerodrome | — | Pitt Island | NZ |
| Presidente Perón International Airport | NQN | Neuquén | AR |
| Qaanaaq Airport | NAQ | Qaanaaq | GL |
| Qiqihar Sanjiazi Airport | NDG | Qiqihar | CN |
| Quetzalcóatl International Airport | NLD | Nuevo Laredo | MX |
| Ranai Airport | NTX | Ranai-Natuna Besar Island | ID |
| Reyes Murillo Airport | NQU | Nuquí | CO |
| Rio Grande do Norte/São Gonçalo do Amarante–Governador Aluízio Alves International Airport | NAT | Natal | BR |
| Rundu Airport | NDU | Rundu | NA |
| Sanday Airport | NDY | Sanday | GB |
| Santa Ana Airport | NNB | Santa Ana Island | SB |
| Simon Mwansa Kapwepwe International Airport | NLA | Ndola | ZM |
| Sinop Airport | NOP | Sinop | TR |
| Sir Ahmadu Bello International Airport | — | Birinin Kebbi | NG |
| Şırnak Şerafettin Elçi Airport | NKT | Şırnak | TR |
| Spichenkovo Airport | NOZ | Novokuznetsk | RU |
| Stockholm Skavsta Airport | NYO | Nyköping | SE |
| Sunyani Airport | NYI | Sunyani | GH |
| Vance W. Amory International Airport | NEV | Charlestown | KN |
| Weeze (Niederrhein) Airport | NRN | Weeze | DE |
| Xinyuan Nalati Airport | NLT | Xinyuan | CN |
| Yaoundé Nsimalen International Airport | NSI | Yaoundé | CM |
| Zhalantun Genghis Khan Airport | NZL | Zhalantun | CN |