MDB

MDB may refer to:

Computing

 * .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

Politics

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

Other uses

 * 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
 * My Dying Bride, a British doom metal band