NI or Ni may refer to:

Arts and entertainment

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

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. C ...

, 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 fami ...

, 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, 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 ...

(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 names

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 countr ...

(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, an external territory of Australia * North Island, 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 ...

, symbol Ni, a chemical element * Ampere-turns, sometimes abbreviated NI * Natural insemination i.e. sexual intercourse, in contrast to artificial insemination * Nitrogen Triiodide, 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 r ...

* Neonatal isoerythrolysis, 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), a Japanese rocket based on the U.S. Delta/Thor family * Nishan-e-Imtiaz, a Pakistani civilian decoration * Non-Inscrits (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 typology, the Myers–Briggs Type Indicator (MBTI) is an introspective self-report questionnaire indicating differing psychological preferences in how people perceive the world and make decisions. The test attempts to assign ...