NPI may refer to:
Institutes Non-profit institution Nationaal Pop Instituut: the Dutch Rock & Pop Institute National Policy Institute, an American white supremacist think tank New Policy Institute, a British think tank focusing on poverty Nordic Patent Institute, a patent search organisation for Nordic countries Northwest Progressive Institute, a liberal American think tank concerned with social policy Norwegian Polar Institute, performs environmental research in the polar regions
Other uses Narcissistic Personality Inventory, a standard personality test for evaluating self-centredness National pollutant inventory National Provider Identifier Negative polarity item, grammatical form used during negation New Politics Initiative New product introduction Nickel pig iron Non-pharmaceutical intervention, health measures that are not centred on drug treatments Non-pharmaceutical intervention (epidemiology), measures such as social distancing, face masks etc. to prevent COVID-19 etc. Nonpublic personal information (Gramm–Leach–Bliley Act) No pun intended Nottingham Prognostic Index NP-intermediate, a complexity class in computational complexity theory Numbering plan indicator
See also
NPI-1
No pun intended