MDM may refer to:
Computers and data Master data management, the organization and control of reference or master data shared by disparate IT systems and groups Metadata management, storing and organizing information about other information Mobile device management, software for the administration of smartphones and other mobile devices Multiplexer-demultiplexer Meter data management, data storage and management software
Entertainment Melodic death metal, a music genre M-D-Emm, a British electronic music group Mere Dead Men, a British punk band Modern Drunkard, a magazine Moi dix Mois, a Japanese metal band My Dear Melancholy, an EP by the Weeknd
Science and medicine Mdm2 protein, encoded by the MDM2 gene in humans Medical decision making, part of differential diagnosis in clinical medicine Multiple drafts model, a theory of consciousness Portal of Medical Data Models, medical research infrastructure Music-dependent memory, a subtype of context-dependent memory
Organizations and businesses Democratic Movement of Mozambique (Movimento Democrático de Moçambique), a political party Mass Democratic Movement, part of the United Democratic Front in South Africa Médecins du Monde (MdM), a medical humanitarian organisation Movement for a Democratic Military, a GI antiwar and resistance organization during the Vietnam War MDM Bank in Russia
Other uses Mario Del Monaco (1915–1982), operatic tenor Mayogo language (ISO 639-3:mdm), spoken in the DR Congo MDM Observatory, in Arizona MDM-1 Fox, a glider aircraft MDM Hotel, in Warsaw, Poland MDM Motorsports, an American professional stock car racing team Mechanically deboned meat, a meat-handling process Misinformation, disinformation, and malinformation Marshal Residential District (, MDM), a housing estate in Warsaw, Poland