| Acronym | Definition |
|---|
| NPP | New Patriotic Party (Ghana) |
| NPP | Net Primary Production |
| NPP | Net Primary Productivity |
| NPP | National People's Party |
| NPP | Nuclear Power Plant |
| NPP | Nuclear and Particle Physics (various locations) |
| NPP | Notice of Privacy Practices (US HIPAA medical patient privacy) |
| NPP | Nobel Peace Prize |
| NPP | National Priorities Project |
| NPP | National Privacy Principles |
| NPP | Non Paged Pool |
| NPP | Network Packet Provider |
| NPP | New Perspective on Paul (theology) |
| NPP | Non-Physician Practitioner |
| NPP | National Progressive Party |
| NPP | Network Printing Protocol |
| NPP | No Party Preference (California voter registration category) |
| NPP | Northern Periphery Programme (EU) |
| NPP | New Progressive Party (statehood party in Puerto Rico) |
| NPP | New Product Planning (research and development) |
| NPP | NPOESS Preparatory Project (NPOESS/NASA satellite program) |
| NPP | Named Patient Program (provides access to drugs before approval by national health authorities) |
| NPP | National Patriotic Party (political group; Liberia) |
| NPP | Network Planning Process |
| NPP | Non-Point Pollution (environment) |
| NPP | National Privacy Principle (Australia) |
| NPP | National Prison Project (ACLU) |
| NPP | Neutral Point Potencial (electrical engineering) |
| NPP | National Policy Paper |
| NPP | Native Plant Project |
| NPP | Neils Power Pipes |
| NPP | Negotiation Position Paper |
| NPP | National Park Preserve (various locations) |
| NPP | Notice of Proposed Procurement |
| NPP | Neighbourhood Police Post (Singapore) |
| NPP | National Pipe Parallel (pipe thread specification) |
| NPP | Non-Production Procurement (various companies) |
| NPP | Niue People's Action Party (Niue) |
| NPP | Nonprofit Partnership |
| NPP | Non-Production Purchase |
| NPP | Netherlands Production Platform (co-production collaboration) |
| NPP | National Partnership Project |
| NPP | Non Paged Pool (memory) |
| NPP | Nurse Practitioner in Psychiatry |
| NPP | New Project Proposal (project management) |
| NPP | Nuclear Propulsion Plant |
| NPP | Notice of Planned Procurement |
| NPP | Notices of Proposed Procurement (Canada) |
| NPP | Naval Propellant Plant (Indian Head, MD) |
| NPP | New Pages Patrol (Wikipedia group) |
| NPP | Neutron Production Reactor |
| NPP | No Pants Players (Charleston, WV theater group) |
| NPP | North Pittsburgh Philharmonic |
| NPP | Nuclear Propulsion Package |
| NPP | Normal Proving Period |