NJAB
| Acronym | Definition |
|---|---|
| NJAB | National Joint Adjustment Board (Sheet Metal Workers' International Association) |
| NJAB | National Jewish Archive of Broadcasting (Jewish Museum; New York, NY) |
| NJAB | North Jersey Area Band (New Jersey) |
| NJAB | Not Just Another Blog (blog) |
| NJAB | National Junior Angus Board (cattle) |