NPD may refer to:
Companies
- NPD Group, an American market research company
- NPD (petrol), a New Zealand fuel retailer
Political parties
- New Democratic Party of Canada ()
- The Homeland, formerly known as the National Democratic Party of Germany, a far-right party ()
- National Democratic Party of Germany (2023), a far-right party that split from The Homeland ()
- National Party of Germany, a former minor party ()
- New Party Daichi, Japan
- New Palangdharma Party, Thailand
Places
- New Pudsey railway station, England (National Rail code: NPD)
- Nawapara Road railway station, India (Indian Railways code: NPD)
Science
- Narcissistic personality disorder
- Nitrogen–phosphorus detector, in chromatography
- Non-parental ditype, in tetrad genetic analysis
- Nuclear Power Demonstration, a reactor in Canada
- Nuclear Protein Database
Other uses
- New product development, the complete process of bringing a new product to market
- Newark Police Division, United States