| Acronym | Definition |
|---|
| NPI➣No Pun Intended |
| NPI➣Not Plugged In (computer/network technical problem) |
| NPI➣National Provider Identifier |
| NPI➣New Product Introduction |
| NPI➣Northwest Progressive Institute |
| NPI➣National Pollutant Inventory (Australia) |
| NPI➣Non-public Personal Information |
| NPI➣National Property Inspections (Omaha, NE) |
| NPI➣Norwegian Polar Institute (Norway) |
| NPI➣National Polytechnic Institute (various locations) |
| NPI➣Neuropsychiatric Institute (UCLA) |
| NPI➣National Provider Id |
| NPI➣Numbering Plan Identification |
| NPI➣Nippon Photography Institute (Japan) |
| NPI➣Nippon Paper Industries (Japan) |
| NPI➣Narcissistic Personality Inventory |
| NPI➣New Partners Initiative (est. 2005) |
| NPI➣Net Profits Interest |
| NPI➣Non-Process Infrastructure (mining) |
| NPI➣Natural Products, Inc. (Grinnell, IA) |
| NPI➣New Product Initiative (various companies) |
| NPI➣National Productivity Institute (South Africa) |
| NPI➣Nikon Precision, Inc. (Belmont, CA) |
| NPI➣National Preservation Institute |
| NPI➣Negative Polarity Item (linguistics) |
| NPI➣National Pain Institute (Florida) |
| NPI➣Numbering Plan Indicator |
| NPI➣Network Printer Interface |
| NPI➣Northern Pipeline Interconnector (Australia) |
| NPI➣Norsk Polarinstitutt (Norway) |
| NPI➣Non-Profit Institution |
| NPI➣No Punt Intended (fantasy football) |
| NPI➣Non-Personal Information |
| NPI➣Nickel Pig Iron |
| NPI➣Nextel Partners, Inc. (wireless telecommunications joint venture) |
| NPI➣New Politics Institute (various locations) |
| NPI➣Non-Pharmaceutical Intervention (infectious disease control strategy) |
| NPI➣Neuro Psychiatric Inventory |
| NPI➣National Procedures Institute (Midland, MI) |
| NPI➣Neutral Particle Imager |
| NPI➣Network Provider Interface |
| NPI➣Nano Proprietary, Inc. (Austin, TX) |
| NPI➣Nadel Phelan, Inc. (Scotts Valley, CA) |
| NPI➣No Poseo Información |
| NPI➣Non Profit Industries (Charlotte, NC) |
| NPI➣Nissei Plastic Industrial (Japan) |
| NPI➣Novos Países Industrializados (newly industrialized countries) |
| NPI➣Non-Precision Instrument |
| NPI➣New Patient In |
| NPI➣Nordpol Innsbruck (FCW fanclub) |
| NPI➣Nonpublic Personal Member Information |
| NPI➣Network Provisioning Interface |
| NPI➣NROS Predictive Index (NASCAR Racing Online Series game) |
| NPI➣Not Pre-Installed |
| NPI➣Non Policy Issuance (insurance) |
| NPI➣Sergo Ordzhonikidze Novocherkassk Polytechnic Institute (Russian: Southern-Russian State Technical University) |