This list contains acronyms, initialisms, and pseudo-blends that begin with the letter D.
For the purposes of this list:
- acronym = an abbreviation pronounced as if it were a word, e.g., SARS = severe acute respiratory syndrome, pronounced to rhyme with cars
 - initialism = an abbreviation pronounced wholly or partly using the names of its constituent letters, e.g., CD = compact disc, pronounced cee dee
 - pseudo-blend = an abbreviation whose extra or omitted letters mean that it cannot stand as a true acronym, initialism, or portmanteau (a word formed by combining two or more words).
 
- (a) = acronym, e.g.: SARS – (a) severe acute respiratory syndrome
 - (i) = initialism, e.g.: CD – (i) compact disc
 - (p) = pseudo-blend, e.g.: UNIFEM – (p) United Nations Development Fund for Women
 - (s) = symbol (none of the above, representing and pronounced as something else; for example: MHz – megahertz)
 
Some terms are spoken as either acronym or initialism, e.g., VoIP, pronounced both as voyp and V-O-I-P.
DA
- da – (s) Danish language (ISO 639-1 code) – deca
 - DA – (s) Denmark (FIPS 10-4 country code) – (i) Debtors Anonymous – (i) U.S. Department of the Army – District Attorney
 - DAB – Digital Audio Broadcasting
 - DACT – (i) Data Automated Communications Terminal – Dissimilar Air Combat Training
 - DAD – (s) Da Nang International Airport (IATA code)
 - DADVSI – (i) Loi sur le droit d’auteur et les droits voisins dans la société de l’information (French, "Law on copyrights and related rights in the information society")
 - DAES – (i) Defence Acquisition Executive Summary – (UK MoD) Directorate of Analysis, Experimentation and Simulation
 - DAF – (a) Dissolved Air Flotation, a technique used in water treatment
 - DAFIF – (a) Digital Aeronautical Flight Information File
 - DAK – (a) Disney's Animal Kingdom
 - DA&M – (i) (U.S.) Director, Administration & Management
 - dan – (s) Danish language (ISO 639-2 code)
 - DAO – (i) Division Ammunition Officer
 - DAQ – (p) Data acquisition – (i) Delivered Audio Quality
 - DARE – (a) Drug Abuse Resistance Education
 - DARO – (i/a) (U.S.) Defense Airborne Reconnaissance Office
 - DARPA – (a) U.S. Defense Advanced Research Projects Agency
 - DART – (a) Disaster Assistance Response Team – Dublin Area Rapid Transit
 - DAS – (a) Defensive Aids Suite
 - DASD – (i) (U.S.) Deputy Assistant Secretary of Defense
 - DASL – (i) Datapoint's Advanced Systems Language
 - DAU – (i) (U.S.) Defense Acquisition University
 - DAWN – (a) (U.S.) Drug Abuse Warning Network
 
DB
- dB – (s) Decibel
 - Db – (s) Dubnium
 - DB – (i) Database – Deutsche Bahn
 - d/b/a – (i) doing business as
 - DBA – (i) De Bellis Antiquitatis (miniature wargaming rules)
 - DBBL – (i) (U.S. Army Simulation Center) Dismounted Battlespace Battle Laboratory
 - DBCS – (i) Double Byte Character Set
 - DBDO – (i) Desert BDO
 - DBE – (i) Dame Commander of the Order of the British Empire
 - DBF – (i) Detection By Fire (weapon launch signature)
 - DBM – (i) De Bellis Multitudinis (miniature wargaming rules) – Detection By Movement (military target)
 - DBR – (i) De Bellis Renationis (miniature wargaming rules)
 - DBRA – (i) Davis–Bacon Related Acts
 - DBS – (i) Direct Broadcast Services (television)
 
DC
- DC
- (i) da capo
 - Italian Democrazia Cristiana
 - Digital Compass
 - Direct Current
 - (s) District of Columbia (postal symbol)
 - (i) Douglas Aircraft Company
 - Dublin Core
 - Duty Cycle
 - Disconnected
 
 - DCA
- (i) Defensive Counter Air
 - Drum Corps Associates
 - (p) DiChloroAcetate
 - (s) Ronald Reagan Washington National Airport (IATA code)
 
 - DCAA – (i) (U.S.) Defense Contract Audit Agency
 - DCAS – (i) Devon and Cornwall Archery Society
 - DCC
- (i) Dallas Christian College
 - Digital Command Control (model railroading)
 - Direct Client-to-Client (Internet Relay Chat)
 - Dismounted Close Combat
 
 - DCCP – (i) Datagram Congestion Control Protocol
 - DCD – (i) [Organ] Donation after Cardiac Death
 - DCDC – Development, Concepts and Doctrine Centre
 - DCE – (i) Data Communication Equipment
 - DCFC – (i) Death Cab for Cutie
 - DCI
- (i) Detection, Classification and Identification
 - Drum Corps International
 - Duellists' Convocation International, later known simply by the initials before changing its name to the current Wizards Play Network
 
 - DCIM – (p) Digital Camera Images
 - DCIMS
- (i) Dental Classification Information Management System
 - Dismounted Combat Identification Marking System
 
 - DCL – Disney Cruise Line
 - DCN – Deacon
 - DCOM – Disney Channel Original Movie
 - DCOP – (i) Desktop Communication Protocol
 - DCSOPS – (p) Deputy Chief of Staff for Operations and plans
 - DCW – (i) Digital Chart of the World
 - DCYSC – (i) Discovery Channel Young Scientist Challenge
 
DD
- DD – many, including due diligence and dear daughter (increasingly prevalent on social mailing lists, blogs, and bulletin boards); see entry – Dunkin Donuts
 - D&D
- (i) Dungeons & Dragons
 - Diversion and Distress (Air Traffic Control)
 
 - DDA
 - DDD
- (i) Data Display Debugger
 - Digital Digital Digital (CD mastering)
 
 - DDL – (i) Digital Data Link
 - DDLC – Doki Doki Literature Club!
- DDLC+ – the expanded version, Doki Doki Literature Club Plus!
 
 - DDN – (i) U.S. Defense Data Network
 - DDoS – (i) Distributed Denial of Service
 - DDP
- (i) Danish Design Prize
 - Deutsche Demokratische Partei (German, "German Democratic Party" – former political party in Weimar Germany)
 - Diamond Dallas Page (American professional wrestler)
 
 - DDR
- (i) Dance Dance Revolution
 - Deutsche Demokratische Republik (German, "German Democratic Republic" (GDR), East Germany)
 - Double Data Rate
 - (s) East Germany (ISO 3166 trigram, obsolete since 1990)
 
 - DDR&E – (i) (U.S.) Defense Department Research and Engineering
 - DDS – (i) Doctor of Dental Surgery
 - DDT
- (i) Dichloro-Diphenyl-Trichloroethane (insecticide)
 - Dramatic Dream Team, the original name of the Japanese professional wrestling promotion DDT Pro-Wrestling
 - Dynamic Debugging Tool (computing)
 
 
DE
- de – (s) German language (ISO 639-1 code)
 - DE – (s) Delaware (postal symbol) – Germany (ISO 3166 digram)
 - DEA – (i) Drug Enforcement Administration
 - DEA – (i) Drug Enforcement Agency
 - DEC
- (a/i) Department of Environmental Conservation
 - Digital Equipment Corporation
 - Disasters Emergency Committee
 
 - DeCA – (p) (U.S.) Defense Commissary Agency
 - DECSIM – (p) Model DEComposition and SIMulation algorithm – Directed Energy Combat SIMulation
 - DECT – (a) Digital European Cordless Telephone
 - DEERS – (a) Defense Enrollment Eligibility Reporting System (US Department of Defense database of individuals eligible for certain benefits)
 - DEFCON – (p) Defence readiness condition
 - DEFRA – (a) (UK) Department for Environment, Food and Rural Affairs
 - DELT – (a) Dual Ended Line Test (ing)
 - DEM
- (i) Data Exchange Mechanism
 - Digital Elevation Model
 
 - DEN – (s) Denmark (IOC and FIFA trigram, but not ISO 3166)
 - DEPSECDEF – (p) (U.S.) Deputy Secretary of Defense
 - DERA – (a) British Defence Evaluation and Research Agency (1995–2001)
 - DES – (i) Deep Ecliptic Survey
 - deu – (s) German language (ISO 639-2 code)
 - DEU – (s) Germany (ISO 3166 trigram)
 
DF
- DF
- (i) Direct Fire
 - Direction Finding
 - Distrito Federal (Spanish and Portuguese for "federal district")
 
 - DFAD – (p) Digital Feature Analysis Data ("dee-fad")
 - DFAS – (i) (U.S.) Defense Finance and Accounting Service
 - DFB – (i) Deutscher Fußball-Bund (German for "German Football Association")
 - DFCB – (i) Data Format Control Book
 - DfID – (i) UK Department for International Development
 - DFL
- (i) Democratic–Farmer–Labor (the full designation of the Minnesota affiliate of the U.S. Democratic Party)
 - Deutsche Fußball Liga (German for "German Football League"), the operator of the top two leagues of German football
 
 - DFM – (i) Dynamic Flowgraph Methodology
 - DFM – (ii) Discrete Field Model see Superluminal motion
 - DFSP – (i) Dermatofibrosarcoma protuberans
 - DfT– (i) Department for Transport
 - DFTBA – (i) Don't Forget To Be Awesome- a term commonly used by the Vlogbrothers
 
DG
- DG – (i) Dei gratia (Latin, "by the grace of God") – Director-General – Data General
 - DGA – (i) Direction générale des armées (French "Armed Forces General Directorate")
 - DGAF – (I) Don't give a f***
 - DGD&D – (i) UK Directorate General of Development and Doctrine
 - DGPS – (i) Differential GPS
 - DGZ – (i) Desired Ground Zero
 
DH
- DH – (i) dear husband (increasingly prevalent on social mailing lists, blogs, and bulletin boards) – Designated hitter
 - DHA – (p) DocosaHexaenoic Acid
 - DHHS – (i) (U.S.) Department of Health and Human Services
 - DHL – (i) Dalsey, Hillblom, and Lynn (courier service)
 - DHRA – (i) (U.S.) DoD Human Resources Activity
 - DHS – (i) U.S. Department of Homeland Security
 - DHSS – (i) UK Department of Health and Social Security
 - DHTFYSS – (i) U.S. Don't Have Time For You Silly S****
 - DHY – (s) Dahomey (ISO 3166 trigram; became BEN for Benin in 1977)
 
DI
- DIA – (i) U.S. Defense Intelligence Agency
 - DIAC – (a) Department of Immigration and Citizenship (Australia)
 - DiC – Design Island Centre (computing usually used in a teaching situation)
 - DICASS – (p) DIrectional Command Activated Sonobuoy System
 - DID – (i) Dissociative identity disorder
 - DILLIGAD – (a) Do I Look Like I Give A Damn? (military shorthand, slightly less offensive than the following)
 - DILLIGAF – (a) Do I Look Like I Give A Fuck? (military shorthand; the theme of biography, album, tour, and other products of Kevin Bloody Wilson)
 - DIF – (i) Data Interchange Format
 - DIFAR – (p) DIrectional Frequency Analysis and Recording
 - DIME – (a) Dense inert metal explosive
 - DIMM – (a) Dual In-line Memory Module (computing)
 - DIN
- (i) Deutsches Institut für Normung (German, "German Institute for Standardization")
 - Drug Identification Number (Canadian drug marketing requirement)
 
 - DINA
- (p/a) Diesel Nacional (Spanish, "National Diesel"—Mexican bus and truck manufacturer now known as DINA)
 - Dirección de Inteligencia Nacional (Spanish, "National Intelligence Directorate"—former secret police of Chile)
 
 - DINKY – (a) Double Income, No Kids Yet
 - DIP – (a) Dual In-line Package (electronics)
 - DIPS – (a) Defense independent pitching statistics
 - DIR – (i) Defence Industrial Research
 - DIS
 - DISA
- (a) U.S. Defense Information Systems Agency
 - Distinguished Individual Service Award
 
 - DISCOM – (p) Division Support Command
 - DISE – (i) Deployable Intelligence Support Element
 - DISSTAF – (a) DIS Search and Target Acquisition Fidelity experiment
 - DITY – (i/a) Do-It-Yourself
 - div – (s) Dhivehi language (ISO 639-2 code)
 - DIVAD – (p) Division Air Defence
 - DIY – (i) Do It Yourself
 
DJ
- DJ – (i) Disc Jockey – Dinner Jacket – (s) Djibouti (ISO 3166 digram; FIPS 10-4 country code)
 - DJD – (i) Degenerative Joint Disease – Dublin Julian Day – Discoveries in the Judaean Desert
 - DJF – (s) Djibouti franc (ISO 4217 currency code)
 - DJI – (s) Djibouti (ISO 3166 trigram)
 - DJS – (i) Director, Joint Staff
 
DK
- DK – (s) Denmark (ISO 3166 digram) - Donna Karan
 - DKK – (s) Danish krone (ISO 4217 currency code)
 - DKP – Don King Productions
 
DL
- DL – Dexter's Laboratory
 - DLA
 - DLI – (s) IATA code for Lien Khuong Airport
 - DLIC – (i) Detachment Left-In-Contact
 - DLIR – (i) Depot-Level Inspection and Repair
 - DLL – (i) Dynamic Link Library
 - DLPFC or DL-PFC – (i) DorsoLateral PreFrontal Cortex
 - DLPMC – (i) DorsoLateral PreMotor Cortex
 - DLR
- (i) Deutsches Zentrum für Luft- und Raumfahrt (German, German Aerospace Centre)
 - Docklands Light Railway
 
 - DLRP – (i) Data Link Reference Point
 - DLS – (i) Deep Lens Survey
 - DLSA – (i) (U.S.) Defense Legal Services Agency
 - DLSc – (p) Diploma in Library Science
 - DLSC
- (i) U.S. Defense Logistics Services Center
 - U.S. Defense Logistics Support Command
 - Department of Library Special Collections (Western Kentucky University Libraries)
 - Direct Loan Servicing Center
 - Directorate of Land Strategic Concepts (Canada)
 - Dominican Lay Scholars Community
 
 - DLTBGYD – Don't let the bastards grind you down
 
DM
- DM
- (s) Dominica (ISO 3166 digram)
 - (i) Dungeon Master (role-playing games)
 
 - DMA
- (i) Designated market area (primarily a U.S. term)
 - U.S. Defense Mapping Agency (became NIMA, then NGA)
 - Direct Memory Access (computing)
 - (s) Dominica (ISO 3166 trigram)
 
 - DMC – (i) (U.S.) Defense Management Council
 - DMCA – Digital Millennium Copyright Act
 - DMD
- (i) dentariae medicinae doctor (Latin, "doctor of dental medicine")
 - Digital Micromirror Device
 - Digital Multilayer Disk
 
 - DMI – (i) Desktop Management Interface (computing)
 - DMM – Digital Multimeter
 - DMOC – (i) Distributed Mission Operations Centre
 - DMOS – (i/a) Double Diffused MOS transistor ("dee-moss")
 - DMPA – (i) (U.S.) Defense Medical Programs Activity
 - DMPFC – (i) DorsoMedial PreFrontal Cortex
 - DMPK – (i) Drug Metabolism and Pharmacokinetics
 - DMRB – (i) Design Manual for Roads and Bridges
 - DMS – (i) U.S. Defense Message System
 - DMSO
- (p) Dimethyl sulfoxide
 - (i) U.S. Defense Modeling & Simulation Office ("dim-so"), now Modeling and Simulation Coordination Office
 
 - DMSP – (i) U.S. Defense Meteorological Satellite Program
 - DMT – (i) Dimethyltryptamine
 - DMU – (i) Diesel Multiple Unit, a method of connecting self-propelled railway vehicles together to form a train under the control of one driver.
 - DMV – (i) Department of Motor Vehicles
 - DMZ – (i) DeMilitarized Zone
 
DN
- DN – (i) Deacon
 - DNA
- (i) U.S. Defense Nuclear Agency
 - Deoxyribonucleic acid
 - Douglas Noël Adams
 
 - DNAW – (i) Day Night All Weather
 - DND – (i) Department of National Defence (Canada) – Do not disturb
 - DNDi – (i) Drugs for Neglected Diseases initiative
 - DNDO – (i) U.S. Domestic Nuclear Detection Office
 - DNM – (i) Defence Nuclear Material
 - DNK – (s) Denmark (ISO 3166 trigram)
 - DNR – (i) Do not resuscitate
 - DNS – (i) Domain name system
 
DO
- DO – (s) Dominica (FIPS 10-4 country code) – Dominican Republic (ISO 3166 digram) – (i) Doctor of Osteopathic Medicine
 - DOA – (i) Dead On Arrival – Dead or Alive
 - DOB – (i) Date Of Birth
 - DoCRA – (a) Duty of Care Risk Analysis Standard
 - DOD – (i) U.S. Department of Defense
 - DODAF – (a) U.S. Department of Defense Architectural Framework
 - DoDD – (i) U.S. Department of Defense Directive
 - DoDEA – (i) (U.S.) Department of Defense Education Activity
 - DOE – (i/a) U.S. Department of Energy
 - DOHC – (i) Dual-OverHead-Cam engine
 - DOI – (i) Digital Object Identifier – U.S. Department of the Interior
 - DOM – (i) Deo optimo maximo (Latin, "to God, the best and greatest") – (a) Document Object Model – (s) Dominican Republic (ISO 3166 trigram)
 - DOMS – (i) (U.S.) Director of Military Support
 - DOP – (s) Dominican peso (ISO 4217 currency code)
 - DORA – (a) Defence of the Realm Act
 - DOS – (a) Denial of Service (DoS, cf. DDoS) – Density of State – Disk Operating System
 - DOT – (i) Department of Transportation (U.S. federal or state) – Damage Over Time (common in World of Warcraft)
 - DOTA – short-form for DEFENSE OF THE ANCIENTS a popular online epic game
 - DotD – (i) Deal of the Day (marketing gimmick)
 - DOTMLPF – (i) Doctrine, Organization, Training, Materiel, Leadership, Personnel, and Facilities (mnemonic)
 - DOW – (i) Died of Wounds
 
DP
- DP – (i) Division de production (Algerian petroleum company)
 - DP – (i) Decision Point – Dynamic Programming
 - DPA – (i) UK Defence Procurement Agency
 - DPCO – (i) Double-Pole Change Over
 - DPDT – (i) Double-Pole Double-Throw
 - DPICM – (i) Dual-Purpose Improved Conventional Munition
 - DPKO – (p) UN Department for Peacekeeping Operations
 - DPMO – (i) (U.S.) Defense Prisoner of War/Missing Personnel Office
 - DPPDB – (p) Digital Point Positioning Database
 - DPRE – (p) Displaced Person or Refugee (plural Displaced Persons and Refugees) (originally Displaced Persons, Refugees, Evacuees)
 - DPRK – (i) Democratic People's Republic of Korea
 - DPST – (i) Double-Pole Single-Throw
 
DQ
- DQ
- (i) Dairy Queen
 - (s) Jarvis Island (FIPS 10-4 country code)
 
 
DR
- DR – (i) Dead Reckoning – (s) Dominican Republic (FIPS 10-4 country code) – (i) Danmarks Radio (Danish Broadcasting Corporation)
 - DRA – (i) Defence Research Agency (UK, 1991–1995) – Democratic Republic of America
 - DRAGN – (a) Double Radio source Active Galactic Nucleus ("dragon")
 - DRAM – (a) Dynamic Random Access Memory ("dee-ram") (computing)
 - DRC – (i) Democratic Republic of the Congo -- Domaine Romanee Conti
 - DRDC – (i) Defence Research & Development Canada
 - DREA – (i/a) Defence Research Establishment Atlantic (obsolete 2002)
 - DRES – (i/a) Defence Research Establishment Suffield (obsolete 2002)
 - DRET – (i/a) Defence Research Establishment Toronto (obsolete 2002)
 - DREV – (i/a) Defence Research Establishment Valcartier (obsolete 2002)
 - DRI – (i) Detection, Recognition, Identification – Dietary Reference Intake
 - DRIC – (i/a) (U.S.) Defense Research Information Center
 - DRL – (i) Daytime Running Lights – Dorman Roberts Ltd.
 - DRM – (i) Digital Rights Management
 - DRMS – (i) (U.S.) Defense Revitalization and Marketing Service
 - DRPR – (p) Drawing Practices
 - DRT – (i) Document Related Technologies
 
DS
- Ds – (s) Darmstadtium
 - DS
- (i) Dear son (increasingly prevalent on social mailing lists, blogs, and bulletin boards)
 - Defence Scientist
 - Direct Support
 - (s) Dust Storm (METAR Code)
 
 - DSA
- (i) (U.S.) Defense Support Activities
 - Division Support Area
 
 - DSAA
- (i) (U.S.) Defense Security Assistance Agency
 - Driving Schools Association of the Americas
 - DECT Standard Authentication Algorithm
 
 - DSAS – (i) Disney Sing Along Songs
 - DSB – (i) (U.S.) Defense Science Board
 - DSC
 - DSCS – (i) U.S. Defense Satellite Communications System
 - DSCSOC – (i) DSCS Operations Center
 - DSD – (i) Defence Studies Department (King's College, London)
 - DSDS – (i) Deutschland sucht den Superstar (German, "Germany Seeks the Superstar"), the German version of the Idol series
 - DSE – (i) Dry Sheep Equivalent
 - DSG – (i) Direct-Shift Gearbox
 - DSID – (i) Dismounted Soldier Identification System
 - DSL – (i) Digital Subscriber Line
 - DSLR – (i) Digital single-lens reflex (camera)
 - DSM – (i) Diagnostic and Statistical Manual of Mental Disorders
 - DSN – (i) Deep Space Network
 - DSO – (i) Distinguished Service Order (British military decoration)
 - dsp – (i) decessit sine prole (Latin, "died without issue") – genealogy short-hand
- dspl – (i) decessit sine prole legitima (Latin, "died without legitimate issue")
 - dspm – (i) decessit sine prole mascula [superstite] (Latin, "died without surviving male issue" )
 - dspml – (i) decessit sine prole mascula legitima (Latin, "died without legitimate male issue")
 - dspms – (i) decessit sine prole mascula superstite (Latin, "died without surviving male issue")
 - dsps – (i) Decessit sine prole superstite (Latin, "died without surviving issue")
 
 - DSP
 - DSPL – (i) Design Specialists and Plans Language
 - DSR – (i) Deformed Special Relativity
 - DSRV
- (i) Deaf Sports Recreation Victoria
 - Deep Submergence Rescue Vehicle
 
 - DSS
- (i) Digitized Sky Survey
 - Discarding-Sabot Shell (ammunition)
 
 - DST – (i) Daylight saving time
 - DSTL – (i) British Defence Science and Technology Laboratory
 - dsvp – d.s.v.p. decessit sine vitae patria (Latin, "died within fathers lifetime")
 - DSWA – (i) (U.S.) Defense Special Weapons Agency
 
DT
- DTA – (i) Dental Technologists Association
 - DTaP – (a/p) Diphtheria, tetanus, acellular pertussis (vaccine) (pronounced "D-tap")
 - DTD – (i) Digital Terrain Data
 - DTE – (i) Data Terminal Equipment – Down To Earth
 - DTED – (p) Digital Terrain Elevation Data ("dee-ted")
 - DTG – (i) Date-Time Group
 - DTH – (i) Direct To Home (television)
 - DTI – (i) UK Department of Trade and Industry
 - DTIC – (i) (U.S.) Defense Technical Information Center
 - DTL – (i) diode–transistor logic (electronics)
 - DTM
- (i) Deutsche Tourenwagen Masters (German, "German Touring Car Masters" – a current motor racing series)
 - Deutsche Tourenwagen Meisterschaft (German, "German Touring Car Championship" – a defunct motor racing series)
 
 - DTMF – (i) Dual-tone multi-frequency signaling
 - DTLOMS – (i) Doctrine, Training, Leader development, Organization, Materiel, and Soldier (mnemonic)
 - DTO – (i) Disruptive Technology Office (was ARDA)
 - DTOMLS – (i) Doctrine, Training, Organization, Materiel, Leader and Soldier development (mnemonic)
 - DTP
- (i) Desktop publishing
 - Desktop Tablet Press source
 - Diphtheria, tetanus, pertussis (vaccine)
 
 - DTR – (i) Determine The Relationship
 - DTRA – (i) Defense Threat Reduction Agency ("deet-ra")
 - DTSA – (i) (U.S.) Defense Technology Security Administration (ii) – Defend Trade Secrets Act
 
DU
- DU
- (i) Depleted Uranium
 - (s) Dust (METAR Code)
 
 - DUI
- (i) Data Use Identifier
 - Data Use Institute
 - Davis Unified Ignition
 - Diving Unlimited International
 - Documento Único de Identidad
 - Documento Unico de Importación
 - Driving Under the Influence
 - Duke University Improv
 
 - DUMBO – (a) Down Under the Manhattan Bridge Overpass (Brooklyn neighborhood)
 - DUSD – (i) (U.S.) Deputy Under-Secretary of Defense
 
DV
- dv – (s) Dhivehi language (ISO 639-1 code)
 - DV
- (i) Daily Value (FDA food guide)
 - Deo volente (Latin, "God willing")
 
 - DVD – (i) Digital Versatile Disk (was Digital Video Disk)
 - DVLC – (i) UK Driver and Vehicle Licensing Centre
 - dvm – (i) decessit vita matris (Latin, "died in the lifetime of the mother")
 - DVM – (i) Doctor of Veterinary Medicine
 - DVO – (i) Direct View Optics
 - DVOM – Digital Volt-Ohm Meter
 - DVP – various meanings (disambiguation page)
- dvp – (i) decessit vita patris (Latin, "died in the lifetime of the father")
 
 - DVT
- (i) Deep vein thrombosis
 - Design verification test
 - Driving Van Trailer (rail vehicle)
 
 - dvu – (i) decessit vita uxoris (Latin, "died in the lifetime of spouse")
 
DW
- DW – (a) Drum Workshop
 - DWG – (p) Divisional Wargame (military simulation)
 - DWI – (i) Dance With Intensity – Danish West Indies – Diffusion-weighted imaging – Direct water injection – Disaster Welfare Inquiry – Drinking Water Inspectorate – Driving While Intoxicated/Impaired
 - DWM – (a) Doctor Who Magazine
 - DWIM – (a) Do What I Mean
 - DWTS – (a) Dancing with the Stars
 - DWW – (a) Down with Webster
 
DX
- DX
- (s) Dexterity (role-playing games)
 - (p) DeXtrorphan
 - Distant (radio)
 - (i) D-Generation X (professional wrestling stable)
 
 - DXA – (i) Dual-energy X-ray Absorptiometry
 - DXM – (p) DeXtroMethorphan
 
DY
- Dy – (s) Dysprosium
 - DY – (s) Dahomey (ISO 3166 digram; obsolete since 1977)
 
DZ
- dz – (s) Dzongkha language (ISO 639-1 code)
 - DZ – (s) Algeria (ISO 3166 digram) – Drizzle (METAR Code) – (i) Drop Zone
 - DZA – (s) Algeria (ISO 3166 trigram)
 - DZD – (s) Algerian dinar (ISO 4217 currency code)
 - dzo – (s) Dzongkha language (ISO 639-2 code)
 - DZO (Depleted Zinc Oxide — physics/chemistry jargon)
 
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