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

• IMB Banking & Financial Services, Australian banking institution
• Independent Monitoring Board, of the conditions of prisoners in English jails
• Indymac Bancorp, former NYSE symbol
• Institute of Molecular Biology in Mainz, Germany
• 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
• The International Maritime Bureau of the International Chamber of Commerce
• The International Mission Board of the Southern Baptist Convention
• The Irvine-Michigan-Brookhaven detector, of neutrinos, Ohio, US

• Jabu's jungle
• Jabu's Jungle
• Jabutí
• Jabučje (Kragujevac)
• Jabučje, Kragujevac
• Jabučje (Pivara)
• Jabučje, Pivara
• Jabłczak
• Jabłonka, Kuyavian-Pomeranian Voivodeship
• Jabłonkowanie
• Jabłonków Incident
• J.A.C.
• Jacaboa
• Jaca cathedral
• J. Acad. Assoc. Koreanol. Jpn.
• J Acad Assoc Koreanol Jpn
• J. Acad. Clin. Microbiol.
• J Acad Clin Microbiol
• J. Acad. Librariansh.
• J Acad Librariansh
• J. Acad. Manag.
• J Acad Manag
• J Acad Mark Sci
• J. Acad. Mark. Sci.
• J Acad Med Sci