NI or Ni may refer to:
Onika Tanya Maraj (born December 8, 1982), known professionally as Nicki Minaj (), is a Trinidad and Tobago-born rapper and singer.
Nicole Scherzinger (; born Nicole Prescovia Elikolani Valiente; June 29, 1978) is an American singer, songwriter, dancer, actress and television personality.
Nikola Tesla (; Serbo-Croatian: [nǐkola têsla]; Serbian Cyrillic: Никола Тесла; 10 July 1856 – 7 January 1943) was a Serbian-American inventor, electrical engineer, mechanical engineer, and futurist who is best known for his contributions to the design of the modern alternating current (AC) electricity supply system.Born and raised in the Austrian Empire, Tesla studied engineering and physics in the 1870s without receiving a degree, and gained practical experience in the early 1880s working in telephony and at Continental Edison in the new electric power industry.
Nike, Inc. () 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 the chemical element with the 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.
Nintendo Co., Ltd. is a Japanese multinational consumer electronics and video game company headquartered in Kyoto.