| Acronym | Definition |
|---|
| NJA➣National Judicial Academy (Bhopal, India) |
| NJA➣Non-Japan Asia (usually in terms of an economic or trading bloc) |
| NJA➣NetJets Aviation, Inc. |
| NJA➣National Jerkin' Association |
| NJA➣National Judges Association |
| NJA➣National Jousting Association |
| NJA➣Nauka Jezyka Angielskiego (Polish: English Language Teaching) |