NPS

• National Park Service, Taiwan • National Park Service, U.S. • National Pension System, India • National Pension Service, Korea • National Phobics Society, UK charity • National Piers Society, UK charity • National Poetry Slam, competition • National Police Service, UK • National Probation Service, a statutory criminal justice service for England and Wales • National Prosecution Service, Philippines • Nederlandse Programma Stichting, a Dutch broadcasting foundation now part of Omroep NTR • Nigerian Prisons Services • NPS MedicineWise, known prior to 2009 as the National Prescribing Service, a medical information provider in Australia • Nunavik Police Service in Quebec, Canada == Science, medicine and pharmaceutics ==

• Nail–patella syndrome, an autosomal dominant genetic disorder • Neuropeptide S, a neuropeptide found in human and mammalian brain • Novel psychoactive substance or new psychoactive substance (often used interchangeably) • Nonpoint source pollution • NPS Pharmaceuticals, acquired by Shire in 2015 == Technology ==

• Network Policy Server, component of Microsoft Server 2008 == Pipes and pipe threads ==

• National pipe straight, a non-taper pipe thread among the national pipe thread standards • Nominal Pipe Size, a North American set of standard sizes for pipes == Politics ==

• National Party of Scotland, 1928–1934 • National Party of Suriname • New Socialist Party (San Marino) (Italian: ) • People's Movement of Serbia (Serbian: ), a political party in Serbia == Education ==

• National Public School, Indiranagar, Bangalore, India • Naval Postgraduate School, California, US == Literature ==

• New Penguin Shakespeare, a series of the works of Shakespeare published by Penguin Books == Business ==

• Net promoter score, in customer relations == Sports ==

• Neutral Paralympic Athletes at the 2024 Summer Paralympics