| Acronym | Definition |
|---|
| NJC | North Jersey Chapter (various organizations) |
| NJC | National Joint Council (Canada) |
| NJC | National Junior College (Singapore) |
| NJC | National Judicial College |
| NJC | New Japan Chemical Co. Ltd. |
| NJC | Nordic Journal of Computing |
| NJC | Nanyang Junior College (Singapore) |
| NJC | Navy Joining Center |
| NJC | Neighborhood Justice Center |
| NJC | No Joe Challenge |
| NJC | Neuchâtel Junior College (Canadian High School in Switzerland) |
| NJC | National Jewish Coalition |
| NJC | Neighborhood Justice Clinic (East Bay Community Law Center; Berkeley, CA) |
| NJC | Nizhnevartovsk, Russia - Nizhnevartovsk (Airport Code) |
| NJC | National Jean Company (various locations) |
| NJC | Navy Job Classification Manual (US Navy) |
| NJC | Novice Jumper's Certificate (Dog Agility Title) |