NPK may refer to:
- NPK label, the most common labeling convention of the labeling of fertilizers
- NPK (group), a split-off group from TMD located in the Northumberland Park estate of Tottenham
- Noble Park railway station, the station code NPK
- Northland Resources, the FWB code NPK
- National Presto Industries, the NYSE code NPK
This disambiguation page lists articles associated with the title NPK.
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