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DM, Dm, dm, or D.M. may stand for:

Academic titles and postnominals

  • Doctor of Management, an academic management degree
  • Doctor of Medicine, commonly known as M.D. but archaically abbreviated as D.M.
  • Doctor of Music, an academic music-performance degree, also known as DMA

Arts, entertainment, and media

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Broadcasting

  • Danger Mouse (TV series), a British animated television series
  • WWDM, a radio station licensed to Sumter, South Carolina, United States

Gaming

  • Deathmatch (video games), a gameplay mode integrated into first-person shooter computer games
  • Dungeon Master, the game designer, storyteller and referee in Dungeons & Dragons

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Music

  • D minor, a minor scale or chord
  • DM (album), 2017, by Mexican singer Dulce María
  • "DM" (song), 2022, by fromis_9
  • Dance marathon, a multiple-day charity event on U.S. college campuses
  • Depeche Mode, an English synthpop band formed in 1980
  • Drum major (marching band), the leader of a marching band
  • Death Metal, an extreme subgenre of heavy metal music

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Social media

  • Digital marketing
  • Direct message

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In business and economics

  • Deutsche Mark (1948–2002), the former currency of Germany (and West Germany)
  • East German mark (1951–1990)

Companies and products

  • Detroit and Mackinac Railway
  • dm-drogerie markt, a German drugstore chain
  • Dr. Martens, a brand of boots
  • DM, IATA code of Arajet
  • DM, then IATA code of Maersk Air, a former Danish airline which operated from 1969 until 2005

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Military

  • Designated marksman, a soldier fulfilling the marksman role in an infantry squad
  • Royal Naval Armaments Depot, Defense Munitions, sites are prefixed DM
  • A US Navy hull classification symbol: Light minelayer (DM)

Places

  • Davis–Monthan Air Force Base, Tucson, Arizona, US
  • Des Moines, Iowa, the state capital
  • Dominica, an island nation in the Caribbean Sea (ISO 3166-1 alpha-2 code: DM)

Science, technology, and mathematics

Computing

  • .dm, Dominica's top-level Internet domain
  • Dimensional modeling, a set of techniques and concepts used in data warehouse design

Software

  • Display Manager, a window system for Domain/OS on Apollo/Domain workstations
  • Device mapper, a component of the Linux kernel that supports logical volume management
  • X display manager, a graphical login manager

Medicine

  • Degenerative myelopathy, a condition in dogs affecting the spinal cord
  • Diabetes mellitus, a disease characterized by high blood sugar
  • Difference due to memory, a neural activity effect
  • Diminished motivation, a condition characterized by lack of motivation
  • Double minute, fragments of extrachromosomal DNA in human tumors
  • Myotonic dystrophy (DM-1/2/3), a chronic muscle-wasting disease
  • n-Decyl β-D-Maltopyranoside, a maltoside detergent used when purifying membrane proteins
  • Dermatomyositis, an inflammatory systemic disorder affecting the skin, muscles, and other organs

Physics

  • Dark matter, in cosmology, hypothetical non-luminous matter
  • Deformable mirror
  • Dispersion measure, the amount of dispersion of radio waves by interstellar medium

Units of length

  • Decimetre (<code>dm</code>), equal to ten centimetres
  • Decametre (sometimes <code>Dm</code>), equal to ten metres
  • Data mile (<code>DM</code>), in radar, equal to 6000 feet

Other uses in science, technology and mathematics

  • Adamsite, a chemical agent used in riot control
  • Differential Manchester encoding
  • Distributed morphology, a theoretical framework in linguistics

Sports and recreation

  • Dallas Mavericks, an NBA team
  • Danske Mesterskaber, the Danish Athletics Championships
  • Defensive midfielder, an association football position
  • Divemaster, in scuba diving

Other uses

  • De minimis, a Latin legal term
  • Diis Manibus, a Latin epitaphial acronym
  • SJ Dm3, and Dm, Swedish locomotives
  • District magistrate, senior local role in the Indian Administrative Service
  • Des Moines, Iowa
  • Gorontalo (vehicle registration prefix DM)

See also

  • DMS (disambiguation)
  • MD (disambiguation)