List of acronyms: D

(Main list of acronyms)


 * 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&amp;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
 * 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)