NC

NC may refer to:

People

 * Naga Chaitanya, an Indian Telugu film actor; sometimes nicknamed by the initials of his first and middle name, NC
 * Nathan Connolly, lead guitarist for Snow Patrol
 * Nostalgia Critic, the alter ego of Internet comedian Doug Walker from That Guy with the Glasses

Places

 * New Caledonia, special collectivity of France (ISO 3166-1 country code NC)
 * New Canaan, a town in Connecticut, U.S.
 * North Carolina, a U.S. state by postal abbreviation
 * Northern Cyprus, a self-declared state on the island of Cyprus

Biology and medicine

 * Nasal cannula, a device used to deliver supplemental oxygen
 * Nasal chondrocytes, the cell type within the hyaline cartilage of the nasal septum
 * Neural crest, a transient component of the ectoderm
 * Effective number of codons, a measure to study the state of codon usage biases in genes

Chemistry

 * (-NC) Isocyanide, an organic functional group.

Computing and internet

 * NC (complexity), the set of decision problems decidable in polylogarithmic time on a parallel computer with a polynomial number of processors
 * Naming Context, in Microsoft Active Directory
 * NCsoft, a producer of MMORPGs such as Lineage
 * Netcat, a computer network utility
 * Network computer, a diskless desktop computer in the late 1990s
 * Norton Commander, an orthodox file manager program
 * PernMUSH, an online game based on Anne McCaffrey's Pern novels

Physics and materials

 * Nanocarbon, a short name for material based on carbon nanotubes
 * Nanocoulomb, 1:1,000,000,000 of the SI unit of electric charge
 * Neutral current, a class of physics interaction where the mediating boson is neutral, especially for neutrino experiments
 * Nuclear chemistry, the subfield of chemistry dealing with radioactivity, nuclear processes and nuclear properties

Mathematics

 * nc (elliptic function), one of Jacobi's elliptic functions

Other uses in science and technology

 * National coarse, a Unified Thread Standard for screws, nuts, and bolts
 * National Radio Company, American manufacturer of radio equipment from 1914 to 1991
 * Noise criteria, a single-value measurement of background noise derived from a graphic representation of the sound pressure audio spectrum (noise curves)
 * Noun class, a grammatical category of nouns
 * Normally closed, an electrical switch where the default position is closed
 * Not connected, an open cable connection or unassigned connector or part pin
 * Numerical control, a method of automatic operation of machine tools
 * NC MX-5 Miata, the third generation of the Mazda MX-5

Transport

 * Northern Air Cargo, an American cargo airline (IATA designator NC)
 * National Jet Systems, an Australian charter airline (IATA designator NC)
 * Curtiss NC, an American flying boat nicknamed the "Nancy boat"
 * NC-4, the first aircraft to cross the atlantic (with multiple stops)
 * NC, an international maritime distress signal

Other uses

 * NC-17, an MPAA film rating system code indicating that children under 17 are not admitted
 * National Certificate, an educational award in various countries including Ireland and Scotland
 * National Coalition for Syrian Revolutionary and Opposition Forces or National Coalition, a Syrian revolutionary organisation
 * Nehru Centre, Mumbai, India
 * New Centre, a former political party in France now known as The Centrists
 * New Conglomerate (NC), a faction in the PlanetSide series
 * New Continent School (Colegio Nuevo Continente), a private school in Mexico
 * No comment, in internet slang
 * No contest (combat sports)
 * Non Cognizable Offense, in law
 * Nepali Congress, a political party in Nepal
 * Nepali Congress (Democratic)
 * Nepali Congress (Rastrabadi)
 * N.C., "no chord" in guitar tablature
 * Nonconformity (quality), in Quality management
 * Noncommercial (in Creative Commons licenses)