NI or Ni may refer to:
Onika Tanya Maraj (born December 8, 1982), known professionally as Nicki Minaj (English: ), is a rapper, singer, songwriter and model.
Nikola Tesla (; Serbian Cyrillic: Никола Тесла; 10 July 1856 – 7 January 1943) was a Serbian-American inventor, electrical engineer, mechanical engineer, physicist, and futurist who is best known for his contributions to the design of the modern alternating current (AC) electricity supply system.
Nicole Scherzinger (; born Nicole Prescovia Elikolani Valiente; June 29, 1978) is an American recording artist, actress and television personality born in Honolulu, Hawaii and raised in Louisville, Kentucky.
Nicholas II or Nikolai II (Russian: Николай II Алекса́ндрович, tr. Nikolay II Aleksandrovich; 18 May [O.S.
Nike, Inc. (official, US: ; also, non-US ) is an American multinational corporation that is engaged in the design, development, manufacturing, and worldwide marketing and sales of footwear, apparel, equipment, accessories, and services.
Nitrogen is a chemical element with symbol N and atomic number 7. It was first discovered and isolated by Scottish physician Daniel Rutherford in 1772. Although Carl Wilhelm Scheele and Henry Cavendish had independently done so at about the same time, Rutherford is generally accorded the credit because his work was published first.