NR, Nr or nr may refer to:
Arts and media National Review, an American political magazine Newsround, a British news programme for children Nollywood Reinvented, a Nigerian cinematic review website Numerical Recipes, a series of books on numerical computation Not Rated, referring to a work without a content rating in North America
Places NR postcode area, UK, for the area surrounding Norwich, England Nauru (ISO 3166-1 country code) .nr, the country code top-level domain for Nauru North Riding of Yorkshire, England Northern Rhodesia New Rockford, North Dakota, US
Businesses and organizations Military bodies National Resources Division, the domestic division of the United States Central Intelligence Agency Naval Reserve (disambiguation), various bodies Naval Reactors, the governing body of the United States Navy Nuclear Power Program
Rail bodies in Great Britain National Rail, a generic term for passenger services Network Rail, the state-owned track owner (2002–) Northern Rail, a train operating company (2004–2016) Northern Railway (India)
Other businesses and organizations Northern Rock, a defunct British bank (1965–2012) Norwegian Computing Center (NR, in Norwegian: Norsk Regnesentral) Networked Robotics Corporation New Right (Netherlands), a former Dutch political party
Language Nr., a numero sign in some languages Southern Ndebele language, a Bantu language spoken in South Africa (ISO 639-1 code: NR)
Science and technology Biochemistry Nuclear receptor, a class of receptor proteins in the cell Nicotinamide riboside, a form of Vitamin B3 Reactive nitrogen (Nr)
Computing and telecommunications
.nr, the top-level domain for Nauru New Radio, a fifth generation (5G) wireless technology Noise reduction, the process of removing noise from a signal Numerical Recipes, a series of books on numerical computation
Other uses in science and technology Nanorod, in nanotechnology and materials science Non-redundant sequence clustering, in genetics and bioinformatics NR Vulpeculae, a red supergiant star
Other uses NR class, an Australian diesel locomotive Non Resident Nepali (NRN)