MDB

• .mdb, a file-extension used in certain versions of Microsoft Access databases
• MDB, a kernel debugger for the Linux kernel.
• MDB, the NASDAQ ticker symbol for MongoDB, a database management system.
• Message Driven Bean, a special type of Enterprise JavaBean
• Modular Debugger, a debugger available as part of the Solaris Operating System
• Multidrop bus, a category of computer bus

• Mitglied des Deutschen Bundestages (MdB), a member of the German Parliament
• Brazilian Democratic Movement, a centrist political party in Brazil

• Multilateral Development Bank
• Maidstone Barracks railway station, UK National Rail station code
• 3,4-methylenedioxybutanphenamine, an entactogenic drug
• Medulloblastoma, common type of primary brain cancer in children
• Mordechai Ben David, American Hassidic singer
• My Dying Bride, a British doom metal band

• 1MDB, 1Malaysia Development Berhad, Malaysian strategic development company

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