| Acronym | Definition |
|---|
| DD | Day (MM/DD/YYYY) |
| DD | Dolby Digital (Dolby Laboratories Inc.) |
| DD | Due Diligence |
| DD | Double Density (5 1/4" floppy disk format) |
| DD | Doctor of Divinity |
| DD | Delivered |
| DD | Dated |
| DD | Dresden (auto license plate) |
| DD | Due Date |
| DD | Departure Date |
| DD | Department of Defense (forms only) |
| DD | Dundee (postcode, United Kingdom) |
| DD | Disk Drive |
| DD | Delivery Date |
| DD | Dolby Digital |
| DD | Data Display |
| DD | Done Deal |
| DD | Double-Double (double cream, double sugar in coffee) |
| DD | Dunkin' Donuts |
| DD | Data Dictionary |
| DD | Data Description |
| DD | DareDevil (comic book superhero) |
| DD | Direct Deposit |
| DD | Deputy Director |
| DD | Dungeons & Dragons (fantasy game) |
| DD | Direct Download |
| DD | Drop Dead |
| DD | Direct Debit |
| DD | Demand Draft |
| DD | Donald Duck |
| DD | Developmentally Disabled |
| DD | Data Deficient (IUCN Red List of Threatened Species category) |
| DD | Data Directory |
| DD | Digital Divide |
| DD | Double Dragon (game) |
| DD | Decimal Degrees |
| DD | Digital Data |
| DD | Duran Duran (band) |
| DD | Data Definition |
| DD | Defense Department |
| DD | Dumbledore (Harry Potter character) |
| DD | Differential Diagnosis |
| DD | Direct Drive (vinyl record player drive system as opposed to belt drive) |
| DD | Doordarshan (Indian TV network) |
| DD | Divine Divinity (game) |
| DD | Definition Description |
| DD | Destruction Derby (gaming) |
| DD | Double Dare |
| DD | Dig Dug (video game) |
| DD | Donnie Darko (movie) |
| DD | Downtown Disney (Disney World) |
| DD | David Duchovny |
| DD | Double Diamond (English beer) |
| DD | Dresden Dolls (German band) |
| DD | Drydock |
| DD | Duplex Drive |
| DD | Double Down (Blackjack) |
| DD | Drunk Driver |
| DD | Domestic Discipline |
| DD | Design Document |
| DD | Digital Display |
| DD | Draw Down |
| DD | Data Distribution |
| DD | Database Description |
| DD | Detroit Diesel |
| DD | Don't Die (gaming) |
| DD | District Director |
| dd | Convert and Copy (Unix command) |
| DD | Digital Designs (SPL car audio brand) |
| DD | Division Director |
| DD | Double Diamond (band) |
| DD | Double Dip |
| DD | Digital Domain |
| DD | Debian Developer |
| DD | Dishonorable Discharge |
| DD | Designated Driver |
| DD | Direct Damage (Everquest gaming term) |
| DD | Dead Duck |
| DD | Dimebag Darrell (guitar player) |
| DD | Deep Dive (Kingdom Hearts game) |
| DD | Degree of Difficulty (sports) |
| DD | Domestic Disturbance |
| DD | Digital Device |
| DD | Dear Daughter |
| DD | Delayed Delivery |
| DD | Digestive Disease |
| DD | Doctor Doom (comic) |
| DD | Devil Dog |
| DD | Darling Daughter |
| DD | Drunk and Disorderly |
| DD | Domain Directory |
| DD | Damage Dealer (gaming) |
| DD | Daman & Diu (territory in India) |
| DD | Days After Date |
| DD | Direct Draw (computer graphics technology) |
| DD | Dippin' Dots |
| DD | Destructive Device (firearms) |
| DD | Double Damage (gaming) |
| DD | Dimensional Drawing |
| DD | De Dato (Latin: This Day) |
| DD | Deadeye Dick (band) |
| DD | Defect Density |
| DD | Dragon Drive (anime) |
| DD | Data Detect |
| DD | Decoder Driver |
| DD | Decision Documents |
| DD | 1,3-Dichloropropene |
| DD | Decision Directed |
| DD | Dutch Door (architectural drawings) |
| DD | Diastrophic Dysplasia |
| DD | Damage Deposit |
| DD | Dual Density |
| DD | Digital Disc |
| DD | Damage At Delivery |
| DD | Dreaded Disease |
| DD | Disc Diameter (optical measurement) |
| DD | Drift Diffusion |
| DD | David Desrosiers (Simple Plan) |
| DD | Demand Digital |
| DD | Dropping Daylight (band) |
| DD | Distilled Deionized (Water) |
| DD | Dominic Deegan (online webcomic) |
| DD | Darwin Day |
| DD | Deuterium-Deuterium |
| DD | Draco Dormiens (Draco Trilogy) |
| DD | Dagobert Duck (German: Uncle Scrooge) |
| DD | Double Domination (gaming) |
| DD | Dual Damascene |
| DD | Dellamorte Dellamore (Italian: Cemetery Man; movie) |
| DD | Double Diffused |
| DD | Darier Disease (aka Darier-White disease) |
| DD | Defense Depot |
| DD | Distal Muscular Dystrophy |
| DD | Dexdrive (PC hardware used to transfer video game files) |
| DD | Detached Duty (ACG duties) |
| DD | Data Deliverable |
| DD | Defects Detected (software engineering) |
| DD | Drugs & Disease |
| DD | Decimal Divide |
| DD | Directional Driller (oilfield, drilling) |
| DD | Datadyne (gaming) |
| DD | Dynamic Dictionary |
| DD | Delhi Doordarshan |
| DD | Dono Dedit (Latin: gave this offering) |
| DD | Data Discrepancy |
| DD | Delightful Deliveries (Port Washington, NY) |
| DD | Defect Detector (railroad) |
| DD | Delay Dial |
| DD | Dangerous Drop |
| DD | Double-Differencing |
| DD | Dienstdoend (Dutch: in charge) |
| DD | Data Systems Division (BF Goodrich) |
| DD | Data Depository |
| DD | Designated Drunk |
| DD | Disconnecting Device (bolted bus) |
| DD | Deep Draught |
| DD | Delightful Daughter |
| DD | Depacketization Delay |
| DD | Discharged Dead |
| DD | Dedicated Display |
| DD | Direct Downlink |
| DD | Deadly Dragon (game) |
| DD | Double Desktop |
| DD | Designated Decoy |
| DD | Directives Documentation (NASA) |
| DD | Deo Dedit (Latin: Gave To God) |
| DD | Differential Doppler |
| DD | Dionicko Drustvo (Croatian: limited partnership) |
| DD | Differential Detector |
| DD | Dangerous, Detected Failure |
| DD | Delniska Druzba (Slovenian company) |
| DD | Delightful Danish |
| DD | Development Directive |
| DD | Darn Devil (Slingo game) |
| DD | destroyer (Navy ship) (US DoD) |
| DD | Diamond DJs |
| DD | Damaged Dwelling (FEMA) |
| DD | Decoy Discrimination |
| DD | Digital Deliveries |
| DD | Domestic Dialing |
| DD | Doppler Displacement |
| DD | Developmental Disablity |
| DD | Dragon Drone |
| DD | Deferred Discrepancy |
| DD | Drum Demand |
| DD | Deny & Deception |
| DD | Digital Digging |
| DD | Desk Dips (strength-building exercise) |
| DD | Diluted bitumen/Diluent lines |
| DD | Distortion at Decoder |