| Acronym | Meaning |
| NRB | National Reconstruction Bureau (Pakistan) |
| NRB | Naval Repair Base (US Navy) |
| NRB | Navy Reservation Bureau (US Navy) |
| NRB | Neighbourhood Renewal Board (UK) |
| NRB | Nepal Rastra Bank |
| NRB | Nil Rate Band (inheritance tax; UK) |
| NRB | Non-Conformance Review Board |