NI or Ni may refer to:

Arts and entertainment

* Ni, or Nishada, the seventh note of the Indian musical scale in

raga A ''raga'' or ''raag'' (; also ''raaga'' or ''ragam''; ) is a melodic framework for improvisation in Indian classical music akin to a musical mode, melodic mode. The ''rāga'' is a unique and central feature of the classical Indian music tradit ...

* ''

New Internationalist ''New Internationalist'' (''NI'') is an international publisher and left-wing magazine based in Oxford, England, owned and run by a worker-run co-operative with a non-hierarchical structure. Known for its strict editorial and environmental pol ...

'', a magazine * Knights Who Say "Ni!", characters from the film ''Monty Python and the Holy Grail''

Businesses

National Instruments National Instruments Corporation, doing business as NI, is an American multinational company with international operation. Headquartered in Austin, Texas, it is a producer of automated test equipment and virtual instrumentation software. Comm ...

, a U.S. producer of automated test equipment and virtual instrumentation software *

National Insurance National Insurance (NI) is a fundamental component of the welfare state in the United Kingdom. It acts as a form of social security, since payment of NI contributions establishes entitlement to certain state benefits for workers and their famil ...

, a system of taxes and related social security benefits in the United Kingdom *

Native Instruments Native Instruments is a German company that develops, manufactures, and supplies music software and hardware for music production, sound design, performance, and DJing. The company's corporate headquarters and main development facilities are lo ...

, a music software production company *

News International News Corp UK & Ireland Limited (trading as News UK, formerly News International and NI Group) is a List of newspapers in the United Kingdom, British newspaper publisher, and a wholly owned subsidiary of the American mass media Conglomerate (c ...

, a British newspaper publisher * Portugália airline (IATA code NI)

Language

Ni (letter) Nu ( ell, νι ''ni'' ) is the 13th letter of the Greek alphabet (uppercase Ν, lowercase ν), representing the voiced alveolar nasal . In the system of Greek numerals it has a value of 50. It is derived from the ancient Phoenician language nun ...

, or Nu, a letter in the Greek alphabet: uppercase Ν, lowercase ν * Ni (kana), romanisation of the Japanese kana に and ニ *

Ni (cuneiform) The cuneiform sign ni is a common-use sign of the Amarna letters, the ''Epic of Gilgamesh,'' and other cuneiform texts. It has a secondary sub-use in the Amarna letters for addressing the Pharaoh, from the vassal states of Canaan. The address t ...

, a sign in cuneiform writing

Names

Ni (surname) Ni is the Mandarin pinyin and Wade–Giles romanization of the Chinese surname written in Chinese character. It is romanized Ngai in Cantonese. It is romanized as "Geh" in Malaysia and Singapore, and "Ge" in Indonesia, from its Minnan / Hokkian p ...

(倪), a Chinese surname * Ní, a surname prefix from the shortened form of the Irish word for a daughter * Ni, female prefix to some

Balinese name A Balinese name is part of a system of identification used by the Balinese people and in the western parts of the neighboring island of Lombok, Indonesia. A Balinese name will have three parts: a title, a birth order name and a personal name. Balin ...

Places

* Ni River (New Caledonia), a river of New Caledonia *

Ni River (Virginia) NI or Ni may refer to: Arts and entertainment * Ni, or Nishada, the seventh note of the Indian musical scale in raga * ''New Internationalist'', a magazine * Knights Who Say "Ni!", characters from the film ''Monty Python and the Holy Grail'' Bu ...

, a tributary of the Mattaponi River * Mount Ni, a hill in Shandong, China *

Nicaragua Nicaragua (; ), officially the Republic of Nicaragua (), is the largest country in Central America, bordered by Honduras to the north, the Caribbean to the east, Costa Rica to the south, and the Pacific Ocean to the west. Managua is the cou ...

(ISO 3166 NI) **

.ni .ni is the Internet country code top-level domain (ccTLD) for Nicaragua. Second level domains Registrations are at the third level beneath several second level names. There are also a handful of sites directly at the second level, including the ...

, Nicaragua's internet domain *

Norfolk Island Norfolk Island (, ; Norfuk: ''Norf'k Ailen'') is an external territory of Australia located in the Pacific Ocean between New Zealand and New Caledonia, directly east of Australia's Evans Head and about from Lord Howe Island. Together with ...

, an external territory of Australia *

North Island The North Island, also officially named Te Ika-a-Māui, is one of the two main islands of New Zealand, separated from the larger but much less populous South Island by the Cook Strait. The island's area is , making it the world's 14th-largest ...

, one of the two main islands of New Zealand *

Northern Ireland Northern Ireland ( ga, Tuaisceart Éireann ; sco, label= Ulster-Scots, Norlin Airlann) is a part of the United Kingdom, situated in the north-east of the island of Ireland, that is variously described as a country, province or region. Nort ...

, a constituent country of the United Kingdom *

Lower Saxony Lower Saxony (german: Niedersachsen ; nds, Neddersassen; stq, Läichsaksen) is a German state (') in northwestern Germany. It is the second-largest state by land area, with , and fourth-largest in population (8 million in 2021) among the 16 ...

(German: ''Niedersachsen''; ISO 3166 code DE-NI), a state of Germany

Science and technology

Nickel Nickel is a chemical element with symbol Ni and atomic number 28. It is a silvery-white lustrous metal with a slight golden tinge. Nickel is a hard and ductile transition metal. Pure nickel is chemically reactive but large pieces are slow to ...

, symbol Ni, a chemical element *

Ampere-turn The ampere-turn (A⋅t) is the MKS (metre–kilogram–second) unit of magnetomotive force (MMF), represented by a direct current of one ampere flowing in a single-turn loop in a vacuum. " Turns" refers to the winding number of an electrical con ...

s, sometimes abbreviated NI * Natural insemination i.e.

sexual intercourse Sexual intercourse (or coitus or copulation) is a sexual activity typically involving the insertion and thrusting of the penis into the vagina for sexual pleasure or reproduction.Sexual intercourse most commonly means penile–vaginal penetrat ...

, in contrast to artificial insemination *

Nitrogen Triiodide Nitrogen triiodide is an inorganic compound with the formula N I3. It is an extremely sensitive contact explosive: small quantities explode with a loud, sharp snap when touched even lightly, releasing a purple cloud of iodine vapor; it can even b ...

, a sensitive contact explosive *''Natural intelligence'', a term used to contrast intelligence found in nature, particularly in man, from

artificial intelligence Artificial intelligence (AI) is intelligence—perceiving, synthesizing, and inferring information—demonstrated by machines, as opposed to intelligence displayed by animals and humans. Example tasks in which this is done include speech re ...

Neonatal isoerythrolysis Neonatal isoerythrolysis (NI), also known as hemolytic icterus or hemolytic anemia, is a disease most commonly seen in kittens and foals, but has also been reported in puppies. It occurs when the mother has antibodies against the blood type of the ...

, a disease when the mother has antibodies against the blood type of the newborn

Other uses

* NI Tank, a Russian military vehicle *

N-I (rocket) The N-I or N-1 was a derivative of the American Thor-Delta rocket, produced under license in Japan. The N stood for "Nippon" (Japan). It used a Long Tank Thor first stage, a Mitsubishi Heavy Industries-designed LE-3 engine on the second stage, ...

, a Japanese rocket based on the U.S. Delta/Thor family *

Nishan-e-Imtiaz The Nishan-e-Imtiaz (; ) is one of the state organized Civil decorations of Pakistan, civil decorations of Pakistan. It is awarded for achievements towards world recognition for Pakistan or outstanding service for the country. However, the awa ...

, a Pakistani civilian decoration *

Non-Inscrits Non-Inscrits (; abbreviated NI; also non-attached members, abbreviated NA) are Members of the European Parliament (MEP) who do not belong to one of the recognised political groups. These MEPs may be members of a national party, or of a Europe ...

(NI), members of the European Parliament not enrolled in any political group of the European Parliament * Introverted intuition, one of eight cognitive functions postulated by the

Myers–Briggs Type Indicator In Personality type, personality typology, the Myers–Briggs Type Indicator (MBTI) is an introspection, introspective self-report study, self-report questionnaire indicating differing Psychology, psychological preferences in how people perceiv ...