Other
- Master of International Business, a graduate school
- FTSE MIB (Milano Italia Borsa), the main stock market index of the Borsa Italiana
- Minot Air Force Base, by IATA code
- M.I.B (band), a South Korean music group
- Michael Ian Black (born 1971), American comedian, actor and writer
- Master of International Business, a postgraduate business degree
- Melayu Islam Beraja, the adopted national philosophy of Brunei
- Men in Black, a group of mysterious agents in conspiracy theory
- Mint In Box, a collector's abbreviation for an item in mint condition
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