NIR or Nir may refer to:

Science and technology

  • Near-infrared, a region within the infrared part of the electromagnetic radiation spectrum<!--don't use "light" - see light-->
  • Near-infrared spectroscopy, a spectroscopic method that uses the near-infrared region (from 780&nbsp;nm to 2500&nbsp;nm).
  • National Identity Register, a former UK database
  • National Internet registry, which coordinates IP address and other resource allocation
  • NIR, proposed variation of the SECAM colour television system in the Soviet Union
  • Numéro d'inscription au répertoire national d'identification des personnes and numéro d'inscription au répertoire, national identity numbers; see INSEE code

Places

  • Nir, Iran (disambiguation), several places in Iran
  • Negros Island Region, one of the 18 regions of the Philippines
  • Nigeria, UNDP country code
  • Northern Ireland (FIFA country code: NIR<!--see List of FIFA country codes-->, ISO 3166 code: GB-NIR), a part of the United Kingdom
  • Ness Islands Railway, a miniature railway in Scotland
  • Nainpur Junction railway station (station code: NIR), Madhya Pradesh, India

Other uses

  • Nir (name), a Hebrew given name and surname
  • Northern Ireland Railways, the railway operator in Northern Ireland
  • Rate of natural increase, a demographic metric of population increase
  • Nationaal Instituut voor de Radio-Omroep, Dutch name of Belgium's National Institute of Radio Broadcasting (1930-1960)

See also

  • NIRS (disambiguation)