IMB

IMB is a three-letter abbreviation that may refer to:

Organizations

 * IMB Bank, an Australian banking institution
 * Indymac Bancorp, former NYSE symbol
 * Institute of Molecular Biology in Mainz, Germany
 * The International Maritime Bureau of the International Chamber of Commerce
 * The International Mission Board of the Southern Baptist Convention

Other

 * Independent Monitoring Board, of the conditions of prisoners in English jails
 * Integrated Media Block in digital cinema
 * Integrated Mobile Broadcast of TV over mobile telephony
 * Intelligent Mail Barcode, a barcode used on mail in the United States
 * Intermenstrual bleeding, uterine bleeding between the expected menstrual periods
 * Internal Market Bill, United Kingdom, proposals for trading mechanisms within the UK
 * The Irvine-Michigan-Brookhaven detector, of neutrinos, Ohio, US