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MI or variants may refer to:


  • Mortgage insurance, or mortgage guaranty, an insurance policy which compensates lenders or investors for losses due to the default of a mortgage loan
  • M&I Bank, formerly a U.S. bank, now part Bank of Montreal

Computers and smart phones[edit]

  • 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
  • The Mi brand by Xiaomi, used in many of their product names like the Mi series phones, Mi Pad, Mi Band, Mi TV, Mi Power Bank etc

Language, numerals, and names[edit]

Medicine, biology, and psychology[edit]

  • Mechanical Index, an ultrasound metric that is used to estimate the possibility of bioeffects
  • Methylisothiazolinone, or MIT, sometimes erroneously called methylisothiazoline, a biocide and preservative used in cosmetics
  • 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


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



Science and technology[edit]

Television, film, music, and books[edit]

MI, code used on vehicle registration plates[edit]

Other uses[edit]