# List of acronyms: D

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.
(Main list of acronyms)

## Contents

* Top
* D0–9 DA DB DC DD DE DF DG DH DI DJ DK DL DM DN DO DP DQ DR DS DT DU DV DW DX DY DZ
* d – (s) Deci
* D – (s) Deuterium

## 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)
** Disclosure and Barring Service (UK)
** Double-Barreled Shotgun

## 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
** (i) Digital Differential Analyzer (graphics algorithm)
** Digital Differential Analyzer
** Deputy District Attorney
* 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
* DEI - Diversity, Equity, and Inclusion
* 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
** (i) Defence Intelligence Staff
** (U.S.) Defense Investigative Service
** Distributed Interactive Simulation
** Draft International Standard (ISO)
* 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
** (i) U.S. Defense Logistics Agency
** Dental Laboratories Association
* 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
** (i) Differential Scanning Calorimeter
** Digital Selective Calling
** Digital Still Camera
** Distinguished Service Cross
** Doctor of Surgical Chiropody (obsolete)
** Document structure convention (PostScript programming)
** Dynamic Stability Control
* 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
** (i) Defense Standardization Program
** Defense Support Program
** Digital signal processing
* 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)