| Term | Full Form | Category |
|---|---|---|
| NPK | Nacionalnih Poklicnih Kvalifikacij | Others |
| NPK | Network Project for Knowledge | Others |
| NPK | Nippon Pneumatic Kogyo | Others |
| NPK | Nitro Phosphatic Kompound | Others |
| NPK | nitrogen phosphorus, potassium [fertilizer ratio] | Others |
| NPK | Nitrogen, Potassium, Phosphorous | Others |
| NPK | No Prior Knowledge | Others |
| NPK | Non Player Killer | Others |
| NPK | Noordelijk Pinkster Kamp | Others |
| NPK | Norsk Peugeot Klubb | Others |