| NPB | N Propyl Bromide 
| Others |
| NPB | Nagel Paper & Box Company
| Others |
| NPB | NAS Parallel Benchmark
| Others |
| NPB | Nas Parallel Benchmarks
| Others |
| NPB | National Park of Berchtesgaden
| Others |
| NPB | National Plant Board
| Others |
| NPB | National Police Bureau
| Others |
| NPB | National Pork Board
| Others |
| NPB | National Productivity Board
| Others |
| NPB | Natural Products Branch
| Others |
| NPB | Naval Project Brief
| Others |
| NPB | Navigation Processor Board
| Others |
| NPB | Nederlandse Protestanten Bond
| Others |
| NPB | Negative Polarization Branch
| Others |
| NPB | Neighbour Price Balancing
| Others |
| NPB | Neon Party Ball
| Others |
| NPB | Net Present Benefit
| Others |
| NPB | Network Packet Broker
| Others |
| NPB | Network Packet Brokers
| Others |
| NPB | Network Provisioning Bulletin
| Others |
| NPB | Neue Privat Bank
| Others |
| NPB | Neurobiology Physiology And Behavior
| Others |
| NPB | Neurobiology Physiology Behavior
| Others |
| NPB | Neurobiology, Physiology, and Behavior
| Others |
| NPB | Neutral Particle Beam
| Others |
| NPB | Nevada Public Broadcasting
| Others |
| NPB | New Peoples Bank
| Others |
| NPB | News Paper Branch
| Others |
| NPB | Nippon Professional Baseball
| Others |
| NPB | No Parity Bit
| Others |
| NPB | No Problem, Bob
| Others |
| NPB | Non Paying Basxxxx
| Others |
| NPB | Non Paying Bidder
| Others |
| NPB | Non Paying Buyer
| Others |
| NPB | Non Pecuniary Benefits
| Others |
| NPB | Non Professional Boner
| Others |
| NPB | Non Prohibited Bore
| Others |
| NPB | Non Protection Basis
| Others |
| NPB | Nopaperbills.com
| Others |
| NPB | Norfolk and Portsmouth Belt Line Railroad
| Others |
| NPB | Norfolk and Portsmouth Belt Line Railroad Company
| Others |
| NPB | North Palm Beach
| Others |
| NPB | Northeastern Programing Board
| Others |
| NPB | Northeastern Programming Board
| Others |
| NPB | Northern Plains Ballet
| Others |
| NPB | Norton Protected Bin
| Others |
| NPB | Note Printing Branch
| Others |
| NPB | Nuclear Physics B
| Others |
| NPB | Nuclear Productions Boom
| Others |
| NPB | Nucleolus Precursor Body
| Others |