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



  • Doctor of Management, an academic management degree
  • Doctorate in Medicine, an academic medical degree
  • Doctor of Music, an academic music-performance degree, also known as D.M.A


  • Adamsite, a chemical agent used in riot control
  • decimetre, or decimeter, the symbol for the SI unit of length
  • Degenerative myelopathy, a condition in dogs affecting the spinal cord
  • Dextromethorphan, an anti-coughing drug found in many preparations
  • Diabetes mellitus, a disease characterized by high blood sugar
  • Cantor's diagonal argument (diagonal metho), a mathematical proof of the uncountability of real numbers
  • Dichroic mirror, a mirror with different transmittance or reflectance at two different wavelengths
  • Dispersion measure, the amount of dispersion of radio waves by interstellar medium
  • Distributed morphology, a framework for theories of morphology in generative linguistics
  • Dry matter, a measurement of the mass of something when completely dried
  • Myotonic dystrophy, dystrophia myotonica, DM-1/2/3, a disease characterized by wasting of muscles
  • Difference due to Memory, an event related potential differentiating between later remembered versus forgotten items


  • Data mart, a specialized version of a data warehouse
  • Data mining, the process of automatically searching large volumes of data for patterns
  • Device Management, a standard for automatically updating the software on mobile phone
  • Device-mapper, a component of the Linux kernel that supports logical volume management
  • Digital Mars, an American software company developing compilers
  • Direct Message, used at Twitter
  • DM (computing), Display Manager, a window system for Apollo/Domain workstations running AEGIS (Domain/OS)



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


  • Direct market, the dominant distribution and retail network for North American comic books
  • Direct marketing or direct mail, a type of marketing sending messages directly to consumers
  • Maersk Air, IATA code DM, a former Danish airline which operated from 1969 until 2005





  • Dominica, an island nation in the Caribbean Sea
  • Des Moines, the capital of the state of Iowa in the United States


  • Dennis Miller (born 1953), an American entertainer, stand-up comedian, TV personality
  • Dean Malenko (born 1960), a pro wrestler
  • David Miscavige (born 1960), a chairman of RTC (Religious Technology Center)
  • Dave Mustaine (born 1961), a guitarist and songwriter of Megadeth


  • Dance Marathon, a multiple-day charity event on U.S. college campuses
  • Danger Mouse (TV Series), a British animated television series
  • Daily Motion, a video sharing website
  • Digital Monolithic, a National Semiconductor prefix for their digital logic integrated circuits
  • Dr. Martens, a brand of boots
  • Defensive Midfielder, an association football position
  • Divemaster, a title in scuba diving
  • SJ Dm3, and Dm, a Swedish locomotives
  • WWDM, a radio station licensed to Sumter, South Carolina, United States

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