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MI or variants may refer to:

Arts and entertainment[edit]

Film and television[edit]


Other media[edit]

Businesses and organizations[edit]


  • M, a letter in the Latin alphabet
  • Mu (letter), a letter in the Greek alphabet
  • Māori language, language code ISO 639-1
  • Mi (kana), the romanization of the Japanese kana み and ミ


  • Military Intelligence, or milint, a military service that uses intelligence gathering disciplines to collect information that informs commanders for decision making processes
    • MI5, MI6, MI7, MI8, or MI9, the United Kingdom military intelligence sections
  • Operation MI, a Japanese military operation of World War II


Science, technology, and mathematics[edit]

Biology, medicine, and psychology[edit]

  • Mechanical Index, an ultrasound metric that is used to estimate the possibility of bioeffects
  • Methylisothiazolinone, or MIT, an ingredient found in personal care products, sometimes erroneously called methylisothiazoline, used as a biocide and preservative
  • Motivational Interviewing, a therapeutic approach employed in clinical psychology and cognitive behavioural therapy, especially in substance abuse work
  • Multiple Intelligence, the theory that argues that intelligence, particularly as it is traditionally defined, does not sufficiently encompass the wide variety of abilities humans display
  • Myocardial infarction, the technical term for a heart attack
  • Mental illness, or mental disorder

Computing and telecommunications[edit]

  • Mi (prefix symbol), the IEEE prefix symbol for mebi, that represents 220
  • Mi, a brand of electronics company Xiaomi
  • Mobile Internet, a browser-based access to the Internet or web applications using a mobile device connected to a wireless network
  • Multiple inheritance, a feature of some object-oriented programming languages in which a class can inherit behaviors and features from more than one superclass


Other uses in science and technology[edit]

  • Malleable iron, a type of cast iron
  • Melt Flow Index, a characteristic property of a thermoplastic polymer as a means of quality control
  • Mile, a measure of distance in the Imperial system, approximately equal to 1.609 km
  • Mineral-insulated copper-clad cable, a type of electrical cable
  • Moment of inertia, a measure of an object's resistance to changes in its rotation rate
  • MI, or Mi, magnitude-intensity relation, or magnitude intensity scale, used to assess the magnitude of historic earthquakes that occurred prior to the development of seismographs in the late 19th century, see Mercalli intensity scale
  • Multi Interface Shoe, a camera hotshoe introduced by Sony in 2012

Other uses[edit]