| Acronym | Definition |
|---|
| NJCA | New Jersey Citizen Action (Highland Park, NJ) |
| NJCA | National Job Corps Association |
| NJCA | National Judicial College of Australia |
| NJCA | New Jersey Communication Association |
| NJCA | Northern Jamaica Conservation Association |
| NJCA | New Jersey Counseling Association |
| NJCA | New Jersey Classical Association |
| NJCA | Newcastle Junior Cricket Association (Australia) |
| NJCA | New Jersey Compensation Association |
| NJCA | Northumbria Junior Chess Association (UK) |
| NJCA | New Japanese Canadian Association (Alberta, Canada) |
| NJCA | New Jersey Cricket Association |
| NJCA | New Jersey Cemetery Association |
| NJCA | New Jerusalem Christian Academy |
| NJCA | New Jersey Christian Academy |
| NJCA | New Jersey Community Association |
| NJCA | National Juneteenth Celebration Association |
| NJCA | National J24 Class Association |
| NJCA | Northern Jamaica Conservation Authority |