| Abbreviation | Definition |
|---|---|
| NBCA | New Bern Christian Academy |
| NBCA | New Braunfels Christian Academy |
| NBCA | New Brighton Christian Assembly |
| NBCA | North Bay Christian Academy |
| NBCC | National Black Catholic Congress |
| NBCC | Nepal Baptist Church Council |
| NBCC | New Birth Christian Church |
| NBCS | Northern Beaches Christian School |
| NBEA | National Black Evangelical Association |
| NBG | Nothing But God |
| NBO | Network of Buddhist Organisations |
| NBPC | National Black Presbyterian Caucus |
| NBPS | National Buddhist Prison Sangha |
| NBS | Northeast Baptist School |
| NBT | Neighborhood Bible Time |
| NBTS | Northern Baptist Theological Seminary |
| NBUF | Norske Baptisters Barne-og Ungdomsforbund |
| NC | New Covenant |
| NC | Northeast Catholic |
| NCA | National Christian Academy |