N (disambiguation)

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For the Wikipedia guideline on notability requirements, see WP:N

N is the fourteenth letter of the Latin alphabet.

N or n may also refer to:



  • N for Newton (unit), the SI derived unit of force
  • N or , a normal force in mechanics
  • N, the chemical symbol for the element nitrogen
  • N or Asn, the symbol for the common natural amino acid asparagine
  • N, the Normality (chemistry) or chemical concentration of a solution
  • N, the neutron number, the number of neutrons in a nuclide
  • N, in Brillouin zone, the center of a face of a body-centered cubic lattice
  • n, for nano-, prefix in the SI system of units denoting a factor of 10−9
  • n, the optical refractive index of a material
  • n, the principal quantum number, the first of a set of quantum numbers of an atomic orbital
  • n, an electron density, the measure of the probability of an electron being present at a specific location
  • n, an amount of substance in chemical physics
  • n, the coordination number of a substance
  • n-, a lowercase prefix in chemistry denoting the straight-chain form of an open-chain compound in contrast to its branched isomer
  • N-, an uppercase prefix in chemistry denoting that the substituent is bonded to the nitrogen, as in amines
  • ATC code N Nervous system, a section of the Anatomical Therapeutic Chemical Classification System
  • Haplogroup N (mtDNA), a human mitochondrial DNA haplogroup
  • Haplogroup N (Y-DNA), a human Y-chromosome DNA haplogroup
  • N band, an atmospheric transmission window in the mid-infrared centred on 10 micrometres
  • N ray, a hypothesized form of radiation, found to be illusory



  • N. (novella), a 2008 short story by Stephen King
  • N (singer), stage name of Cha Hak-yeon, leader of the South Korean boy band VIXX
  • Near (Death Note) (alias N), a character in the manga series Death Note
  • N, an alias of Drew Mulholland, who recorded more often as Mount Vernon Arts Lab
  • N (album), a 2008 album by Norther
  • "N", a song by BanYa for the "Pump It Up: The Perfect Collection" music video game
  • "n", a song by iamamiwhoami
  • N (video game), a 2005 computer game
  • N, the leader and king of crime syndicate Team Plasma in the Pokémon franchise
  • The N, a former name of American television network TeenNick


  • [n̪], [n], [ɳ], [ɲ], [ŋ], [ɴ], symbols representing nasal consonants in the International Phonetic Alphabet
  • N (kana), a Japanese kana
  • Noun, a part of speech

Other uses[edit]

See also[edit]