NPPD may refer to:
- New Product and Process Development
- Nebraska Public Power District
- National Protection and Programs Directorate
- Nitrophenyl pentadienal (5-(4-nitrophenyl)-2,4-pentadienal), colloquially known as 'spydust', a chemical compound used as a tagging agent by the KGB during the Cold War Soviet era
This disambiguation page lists articles associated with the title NPPD.
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