MPI

MPI or Mpi may refer to:

Biology and medicine

 * Magnetic particle imaging, a tomographic technique
 * Myocardial perfusion imaging, a medical procedure that illustrates heart function
 * Mannose phosphate isomerase, an enzyme
 * Mass psychogenic illness, the rapid spread of illness symptoms where there is no infectious agent
 * Master patient index, an index referencing all patients
 * Multidimensional Pain Inventory, a pain medicine assessment questionnaire

Computing

 * Marburg Picture Index, online database of photographs of artworks
 * Merchant plug-in, software used to prevent credit card fraud on e-commerce sites
 * Message Parsing Interpreter, a Lisp-like language on TinyMUCK
 * Message Passing Interface, a communications protocol for parallel computation
 * Multi-Point Interface, an automation programming protocol from Siemens
 * Multipath interference, a physical effect that causes signal degradation in communication systems
 * Multiple precision integer, a programming language type supporting arbitrary precision

Other science and technology

 * Magnetic particle inspection, a method of detecting defects in ferrous materials
 * Multi point injection, fuel injection system for automobile engines
 * Maximum potential intensity, a meteorology term associated with tropical cyclones

Companies and organizations

 * Magnetic Peripherals Inc., a Control Data Corporation subsidiary renamed Imprimis and sold to Seagate Technology
 * Manitoba Public Insurance, a Crown corporation in Manitoba
 * Markov Processes International, a provider of investment research, analytics and technology
 * Materials Processing Institute, a company providing industrial R&D services based in the UK
 * Max Planck Institute, Germany
 * Migration Policy Institute, Washington, DC
 * Mihajlo Pupin Institute, Serbia
 * Ministry for Primary Industries, New Zealand
 * Ministry of Planning and Investment, Vietnam
 * Mission Pictures International, a foreign sales, finance, and distribution company
 * MotivePower, a locomotive manufacturer and rebuilder
 * Movimiento Pro-Independencia, the Puerto Rican Pro-independence Movement
 * Moving Picture Institute, an American non-profit organization and film production company
 * MPI Media Group, an American home entertainment company

Other uses

 * Mpi language, a language of Thailand
 * Mpi people, an ethnic group from Thailand
 * Mariposa-Yosemite Airport (FAA location identifier), California, US
 * Milanka Price Index, a stock index in Sri Lanka
 * Multidimensional Poverty Index, used by the UNDP