| Acronym | Definition |
|---|
| NPL | National Priorities List (US EPA) |
| NPL | National Physical Laboratory (UK) |
| NPL | Nepal (ISO Country code) |
| NPL | Nigeria Premier League (football) |
| NPL | Netscape Public License (based on Mozilla Public License) |
| NPL | Nati per Leggere (Italian: Born to Read) |
| NPL | Non Performing Loan (loans in default or close to it) |
| NPL | Nashville Public Library (Nashville, TN) |
| NPL | Natural Products Ltd. (AV Thomas Group) |
| NPL | Name Processing List |
| NPL | Netscape Public License |
| NPL | not Proper Label |
| NPL | National Priorities List |
| NPL | Network Password List |
| NPL | Non Procedural Language |
| NPL | National Physical Laboratory |
| NPL | Newmarket Public Library (Canada) |
| NPL | Northern Premier League (Britain) |
| NPL | National Puzzlers' League |
| NPL | Non-Patent Literature |
| NPL | Non-Partisan League |
| NPL | Non-Profit Leadership |
| NPL | Neuro-Linguistic Programming (behavioral science) |
| NPL | Non Parametric Linkage |
| NPL | Naz Project London (UK) |
| NPL | Northbrook Public Library (Northbrook, IL) |
| NPL | National Physical Laboratories (India) |
| NPL | National Paintball League |
| NPL | Normal Power Level (aviation) |
| NPL | New Product Launch |
| NPL | Noun Plural |
| NPL | New Plymouth, New Zealand - New Plymouth (Airport Code) |
| NPL | Non Perceived Light |
| NPL | Natural Products Laboratory (Research Triangle Institute) |
| NPL | No Pay Leave |
| NPL | Nuclear Pumped Laser |
| NPL | Northern Pipe Line (Phoenix, AZ) |
| NPL | Neenah Public Library (Neenah, Wisconsin) |
| NPL | Non Production License |
| NPL | Nasopharyngolaryngoscopy |
| NPL | Network Planning Letter (Sprint) |
| NPL | Navy Point Loma |
| NPL | Normal Peacetime Location |
| NPL | Newport News Part List |
| NPL | Navigation Payload |
| NPL | National Price List |
| NPL | Network Protocol Library |