Nas (disambiguation)

Nas, NaS or NAS may refer to:

Biology and medicine

N-Acetylserotonin, also known as normelatonin, a neurotransmitter
Neonatal abstinence syndrome, a drug withdrawal syndrome found in infants that have been administered drugs
Nerve attenuation syndrome, a fictional disease in the movie Johnny Mnemonic that slowly paralyzes the victim's nervous system
Normative Aging Study, a long-term study of the health effects of aging

Nas Air (Saudi Arabia), a low-cost airline carrier and subsidiary of National Air Services

Nihon Ad Systems, a Japanese anime production and character merchandising company
Norwegian Air Shuttle, Scandinavia's second largest airline

NaS battery, also known as a sodium-sulfur battery
National account system, a framework for measuring the economic activity of a nation
National Airspace System, an aviation control system in the United States
Naval air squadron, a flying unit associated with a navy
Naval air station, a military air base associated with a Navy
New antisemitism, 20th century antisemitism
Non-access stratum, a functional layer in UMTS protocol stack in wireless networking
Nucleophilic acyl substitution, a reaction in organic chemistry
Nucleophilic aromatic substitution, a reaction in organic chemistry

NASA Advanced Supercomputing Division, providing omputing resources for various NASA projects
Nationaal Arbeids-Secretariaat, a trade union federation in the Netherlands from 1893 to 1940
National Academy of Sciences (disambiguation)
National Academy of Songwriters, a music industry association for songwriters
National Airports System
National Apprenticeship Service, the official UK government body responsible for apprenticeship coordination
Nautical Archaeology Society, a British archaeology charity
National Archives of Scotland, in Edinburgh, Scotland
National Association of Scholars, an education organization based in the United States
National Association of Schoolmasters Union of Women Teachers, a trade union representing teachers including headteachers throughout the UK
National Association of Seadogs, a Nigerian confraternity
National Audubon Society, an American environmental organization dedicated to conservancy
National Autistic Society, an autism-related charity in the United Kingdom
Nord Anglia International School Dubai, also known as NAS Dubai, an international school located in Dubai, United Arab Emirates

Nas (Ikaria), a village in the Greek island of Icaria
Lynden Pindling International Airport (IATA airport code NAS), near Nassau, Bahamas