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NP may refer to:

Arts and entertainment[edit]



  • NP postcode area, Newport, Wales, UK
  • Nepal (ISO 3166-1 alpha-2 country code NP)
    • .np, the country code top level domain (ccTLD) for Nepal

Science, technology and mathematics[edit]

Biology and medicine[edit]

Mathematics and computer science[edit]

  • NP (complexity), Nondeterministic Polynomial, a computational complexity class
    • NP-complete, a class of decision problems
    • NP-hard, a class of problems in computational complexity
    • Co-NP, a complexity class
  • Numpy a Python mathematical library
  • Named Pipe a method for Inter-Process Communications (IPC)

Physics and chemistry[edit]

Other uses in science and technology[edit]

Other uses[edit]

See also[edit]