| Acronym | Definition |
|---|
| NPK➣Nippon Kogaku (Japanese cameras) |
| NPK➣Nitrogen, Phosphorous, Potassium |
| NPK➣Nacionalnih Poklicnih Kvalifikacij (Slovenian: National Vocational Qualifications) |
| NPK➣Nederlands Palestina Komitee (Dutch: Dutch Palestinian Committee; Netherlands) |
| NPK➣National Party of Kenya |
| NPK➣Nadmorski Park Krajobrazowy (Polish: Coastal Landscape Park) |
| NPK➣Nippon Pneumatic Kogyo (Japan) |
| NPK➣Non-Player Killer |