| Acronym | Definition |
|---|
| NPG | Nature Publishing Group (Macmillan Publishers, Ltd) |
| NPG | National Portrait Gallery (UK) |
| NPG | New Power Generation (Prince) |
| NPG | NIOSH Pocket Guide to Chemical Hazards |
| NPG | News-Press & Gazette Company (St. Joseph, MO) |
| NPG | Negative Population Growth |
| NPG | Nuclear Planning Group |
| NPG | Neopentyl-Glycol |
| NPG | Non-Partisan Group |
| NPG | National Park Grant (UK) |
| NPG | Not for Profit Group |
| NPG | Nippon Paper Group, Inc. (Japan) |
| NPG | Naval Proving Ground |
| NPG | Non-Preferred Generic (drug classification) |
| NPG | Nauplii Per Gram (marine sciences) |
| NPG | Network Participation Group |
| NPG | North Pacific Gyre |
| NPG | Nevada Proving Ground |
| NPG | National Program Guidelines (US FAA) |
| NPG | Nonunit Personnel Generator |
| NPG | Non-Cooperative Power Control Game |
| NPG | NASA Procedures & Guidelines |
| NPG | NASA Policies and Guidelines |
| NPG | NASA Program Guideline |
| NPG | Neo PSX Gamer |
| NPG | National People's Gang |
| NPG | New Parent Group |
| NPG | Nîmes Poker Gardois (French poker club) |