LPI may refer to:

Places

  • Linköping/Saab Airport (IATA code), Sweden
  • Linus Pauling Institute, at Oregon State University, US
  • Pyramide Inversée, a skylight constructed in an underground shopping mall in front of the Louvre Museum in France
  • Lady Parry Island, an uninhabited island in Nunavut, Canada

Organizations

  • Lunar and Planetary Institute, a scientific research institute dedicated to study of the Solar System, its formation, evolution, and current state
  • Linux Professional Institute, a non-profit organization that provides vendor-independent professional certification for Linux system administrators and programmers
  • LPI Media, a gay and lesbian publisher in the United States

Science and technology

  • Dye penetrant inspection or liquid penetrant inspection, an inspection method used to locate surface-breaking defects in all non-porous materials
  • Lysinuric protein intolerance, an autosomal recessive metabolic disorder affecting amino acid transport
  • Leaf plastochron index, a measure of plant leaf age based on morphological development
  • Lysophosphatidylinositol, an endocannabinoid neurotransmitter
  • Living Planet Index, an indicator of the state of global biological diversity, based on trends in vertebrate populations of species from around the world
  • Lines per inch, a measurement of printing resolution
  • Laser Peripheral Iridotomy; See Glaucoma surgery
  • Liquid phase injectors and liquid propane injection, in autogas
  • Low-power idle in Energy-Efficient Ethernet

Economics and finance

  • Logistics Performance Index, a benchmarking tool created by the World Bank
  • Limited Price Indexation, a pricing index used in the calculation of increases in certain components of scheme pension payments in the UK
  • Legatum Prosperity Index, an annual ranking developed by the Legatum Institute

Other uses

  • La Paz incident, occurred in May 1863 at the ghost town of La Paz in Confederate Arizona and was the westernmost confrontation of the American Civil War
  • Language Proficiency Index, a Canadian standardized test for English proficiency written and administered by the University of British Columbia Applied Research and Evaluation Services
  • Leading pedestrian interval, a type of traffic control
  • Licensed private investigator, a type of private investigator
  • Liga Primer Indonesia, an Indonesian top-tier football league held in 2011
  • Linear partial information, a method of making decisions based on insufficient or fuzzy information

See also

  • Low probability of intercept radar (LPIR), a radar system designed to be difficult to detect