NP

NP may refer to:

Arts and entertainment

• NP (novel), a book by Japanese author Banana Yoshimoto
• Nintendo Power, a magazine published by Future US in North America
• Neopoints, virtual in-game currency for the Neopets website

Organizations

• Nagar Panchayat, a type of city council in India
• Nagar Palika, a type of town council in India
• National Party (disambiguation), various political parties
• Nepal Police (NP)
• Ngee Ann Polytechnic, a school in Singapore
• Nigeria Police Force
• Northern Pacific Railway (AAR reporting mark NP)

Places

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

Science, technology and mathematics

Biology and medicine

• Nasopharyngeal airway, an adjunct to airway management
• Nucleoside phosphorylase, an enzyme
• Nurse practitioner, a registered nurse who has completed advanced nursing education
• Kallikrein 8, an enzyme

Mathematics and computer science

• 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
• NP lemma, or Neyman–Pearson lemma

Physics and chemistry

• NP junction or PN junction, the simplest electronic device, used to make diodes and transistors
• Neper (Np), a dimensionless logarithmic unit for ratios of measurements of physical field and power quantities
• Neptunium, a chemical element with symbol Np
• Power number (N_p), a dimensionless number relating the resistance force to the inertia force

Other uses in science and technology

• .np, the country code top level domain (ccTLD) for Nepal
• Number portability (disambiguation), the ability to retain one's phone number when changing telecommunication carriers
• New Proposal, in the International Organization for Standardization (ISO) standardization process

Other uses

• Noun phrase, in grammar