NRS
NRS may refer to:
- Name Registration Scheme, naming scheme by JANET used on British academic and research networks in the 1980
- National Readership Survey, a joint venture company in the UK providing audience research for print advertising
- NRS social grade, a system of demographic classification and a standard for market research
- National Records of Scotland, the Scottish government department responsible for civil registration, the census in Scotland, demography and statistics, family history and the national archives and historical records.
- National Relay Service, an Australian government initiative for deaf or hard of hearing people, or people with a speech impairment
- National Reporter System, a set of case law reporters in the United States
- National Retail Systems Inc., a global logistics and trucking company
- National Runaway Switchboard, a national US hotline for youth in crisis
- Nederlandsche Rhijnspoorweg-Maatschappij, a former Dutch railway company (1845-1890)
- NetherRealm Studios, an American video game developer known for the Mortal Kombat series
- Nevada Revised Statutes, Nevada laws
- New Regeneration System, a process used for sugar thin-juice decalcification in beet sugar factories
- Nil Ratan Sircar Medical College and Hospital, a renowned public medical school and hospital in Kolkata, India
- Non-rocket spacelaunch, concepts for spacelaunch speed and altitude are provided by something other than rockets
- Norman-Roberts syndrome, a brain disorder
- Norwegian Air UK, airline with ICAO designator NRS
- Nuclear Restoration Services, a trading name of Magnox Ltd
- Numerical Rating Scale, a scale for pain