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

Businesses

* National Instruments, a U.S. producer of automated test equipment and virtual instrumentation software * National Insurance, a system of taxes and related social security benefits in the United Kingdom * Native Instruments, 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 ...

, or Nu, a letter in the Greek alphabet: uppercase Ν, lowercase ν *

Ni (kana) に, in hiragana, or ニ in katakana, is one of the Japanese kana, which each represent one Mora (linguistics), mora. The hiragana is written in three strokes, while the katakana in two. Both represent although for Japanese phonology, phonologi ...

, romanisation of the Japanese kana に and ニ * Ni (cuneiform), a sign in cuneiform writing

Names

* Ni (surname) (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) The Ni River is a river of New Caledonia. It has a catchment area of 173 square kilometres. See also *List of rivers of New Caledonia References

Rivers of New Caledonia {{NewCaledonia-river-stub ...

, a river of New Caledonia * Ni River (Virginia), a tributary of the Mattaponi River *

Mount Ni Mount Ni () is a hill about to the southeast of the city of Qufu in Shandong Province, China. The hill is culturally significant because it is traditionally regarded as the birthplace of Confucius. It is also the site of a historical temple dedi ...

, a hill in Shandong, China * Nicaragua (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, a constituent country of the United Kingdom * Lower Saxony (German: ''Niedersachsen''; ISO 3166 code DE-NI), a state of Germany

Science and technology

* Nickel, 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 *

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