| Acronym | Definition |
|---|
| NRB➣Natural Resources Board |
| NRB➣National Religious Broadcasters |
| NRB➣Nepal Rastra Bank |
| NRB➣Nil Rate Band (inheritance tax; UK) |
| NRB➣Next Reference Block |
| NRB➣Nero Cdrom Boot |
| NRB➣Non-Resident Bangladeshi |
| NRB➣National Reconstruction Bureau (Pakistan) |
| NRB➣National Review Board |
| NRB➣National Research Bureau |
| NRB➣Needle Roller Bearing |
| NRB➣Nuclear Receptor-Binding (endocrinology) |
| NRB➣Nile River Basin |
| NRB➣Non-Regulated Business |
| NRB➣Not Required Back |
| NRB➣National Reservation Bureau Inc |
| NRB➣No Reason Boner |
| NRB➣Navy Reservation Bureau (US Navy) |
| NRB➣Naval Repair Base (US Navy) |
| NRB➣Need Response By |
| NRB➣Non Re-Breather (mask used in anesthesia) |
| NRB➣Non-Conformance Review Board |
| NRB➣Non-Returnable Bottle |
| NRB➣Neutral Red Bioassay |
| NRB➣Nightmare River Band (music group) |
| NRB➣Nootka Resource Board (Gold River, BC, Canada) |
| NRB➣National Repair Bureau (Sprint application) |
| NRB➣Neighbourhood Renewal Board (UK) |
| NRB➣Network Relationship Banking |
| NRB➣Nonrejoining Break (DNA strand) |
| NRB➣Naval Rolled Brass (tubesheet material used in shell-and-tube condensers and heat exchangers) |