| Abbreviation | Definition |
|---|---|
| NHA | Nha-Trang, Vietnam |
| NHD | Minhad Ab, United Arab Emirates |
| NHF | New Halfa, Sudan |
| NHJ | Naha, Japan |
| NHT | Northolt, England, UK |
| NHV | Nuku Hiva, Marquesas Islands, French Polynesia |
| NHX | Foley, Alabama USA |
| NIA | Nimba, Liberia |
| NIB | Nikolai Airport, Nikolai, Alaska USA |
| NIE | Niblack, Alaska USA |
| NIG | Nikunau, Republic of Kiribati |
| NIK | Niokolo Koba, Senegal |
| NIM | Miamey, Niger |
| NIO | Nioki, Zaire |
| NIT | Niort, France |
| NIUE | Alofi-Niue Island, New Zealand |
| NIX | Nioro, Mali |
| NJ12 | State Police Bloomfield Heliport, Bloomfield, New Jersey USA |
| NJ13 | Newbold Island Heliport, Bordentown, New Jersey USA |
| NJC | Nizhnevartovsk, Russia |