| DB | Database | |
| DB | Double | |
| DB | Deutsche Bank | |
|
| DB | Dragon Ball (processor) | |
| DB | Deutsche Bahn AG (German railway company) | |
| DB | Defined Benefit (type of qualified retirement plan) | |
| DB | DragonBall (TV show/anime) | |
| DB | Defensive Back (football) | |
| DB | Dropbox (file hosting service) | |
| DB | Data Bus | |
| DB | Double Bass | |
| DB | Discussion Board | |
| DB | Debug (assembly language ASM51 assembler control) | |
|
| DB | Design and Build (contract) | |
| DB | Data Buffer | |
| DB | Daytona Beach (Florida) | |
| DB | Daily Bulletin | |
| DB | Debit | |
| dB | Decibel | |
| DB | Don't Bother (chat slang) | |
| DB | David Bowie (musician) | |
| DB | Diamond Bar (California) | |
| DB | Dagbladet | |
| DB | Dry Bulb (temperature) | |
| DB | David Beckham (footballer) | |
| DB | Dobra (unit of currency of Sao Tome and Principe) | |
| DB | Daimler Benz | |
| DB | Dena Bank (India) | |
| DB | Die Bahn (German Railways) | |
| DB | Dynamic Bass | |
| DB | Daniel Bryan (professional wrestler) | |
| DB | Deed Book (Recorder of Deeds) | |
| DB | Dead Body | |
| DB | Dark Brotherhood (gaming) | |
| DB | Dragon Boat | |
| DB | Dilbert | |
| DB | DOSBox (DOS emulator) | |
| DB | Direct Broadcast | |
| DB | Dresdner Bank (Germany) | |
| DB | Daughter Board | |
| DB | Death Benefit (insurance) | |
| DB | David Byrne (singer) | |
| DB | Deutsche Bundesbahn (German Federal Railways, 1994 amalgamation with Deutsche Reichsbahn, aka DBAG) | |
| DB | Dumbbell (weight lifting) | |
| DB | Dierks Bentley (country music artist) | |
| DB | Discovery Bay (Hong Kong) | |
| DB | Direct Burial (cable/pipe) | |
| DB | Disability Benefit (various organizations) | |
| DB | Domonic Brown (baseball player) | |
| DB | Dubnium (element 105) | |
| DB | David Blaine | |
| DB | Dirty Bastard | |
| DB | Dattebayo (anime fansub group) | |
| DB | Doobie Brothers (band) | |
| DB | David Boreanaz (actor) | |
| DB | Declining Balance | |
| DB | Debenture | |
| DB | Drew Bledsoe (athlete) | |
| DB | Darkbasic | |
| DB | Distribution Box | |
| DB | Doughboy | |
| DB | Dooney & Bourke | |
| DB | Douche Bag | |
| DB | Difficulty Breathing (medical) | |
| DB | Dimmu Borgir (band) | |
| DB | Deafblind | |
| DB | Dogbert | |
| DB | Daybook | |
| DB | Dispatched By | |
| DB | Dark Beginning (Yu-Gi-Oh cards) | |
| DB | Double Bottom (trading markets; stocks, bonds, commodities) | |
| DB | Door Bell | |
| DB | Digital Blasphemy | |
| DB | Dooney and Bourke | |
| DB | Double Bottom (shipbuilding) | |
| DB | Distribution Board (electronics) | |
| DB | Dangling Bond (chemistry) | |
| DB | Define Byte (assembly language directive) | |
| DB | Division of Biology (FDA) | |
| DB | Detective Branch (Bangladesh) | |
| DB | Dumb Blond | |
| DB | Denied Boarding (airline) | |
| DB | Design Baseline | |
| DB | Deutsche Burschenschaft (German: German Fraternity) | |
| DB | Drinking Buddies | |
| DB | Direct Bilirubin | |
| DB | Delta Band | |
| DB | Docking Bay | |
| DB | Delayed Broadcast | |
| DB | Direct Billing | |
| DB | Digital Battlefield | |
| DB | Deathball (gaming) | |
| DB | Detective Bureau | |
| DB | Direct Budget | |
| DB | Dream Boat | |
| DB | Dime Bag | |
| DB | Dutch Belted (rabbit breed) | |
| DB | Deadbands | |
| DB | Dip Brazing | |
| DB | Dog's Bollocks | |
| DB | Disciplinary Barracks | |
| DB | Ding Bat | |
| DB | Digital Burst (gaming clan) | |
| DB | Sao Tome Dobra (national currency) | |
| DB | Dumb Bunny | |
| DB | Deutsch-Bonnet (French racing car) | |
| DB | Display Builder | |
| DB | Dry Base | |
| DB | Detection Buffer | |
| DB | Depth Bomb | |
| DB | Dedicated Buffer | |
| DB | Daryl Baxter (Nebraska) | |
| DB | Don Balón (soccer magazine; Spain) | |
| DB | Degraded Being (Scientology term) | |
| DB | Deadbeat Parent (someone who does not pay child support) | |
| DB | Double Brew | |
| DB | Defence Board | |
| DB | Drunken Brawler (gaming) | |
| DB | Doggabyte (1e+30 bytes) | |
| DB | Darkenbane (Everquest Guild) | |
| DB | Diffuse Bipolar (cell) | |
| DB | diluted bitumen | |
| DB | Dünya Bankasý (Turkish: World Bank) | |
| DB | Dispersal Base | |
| DB | Balloon drift | |
| DB | Department of Defense Beneficiary (US DoD) | |
| DB | Dome Breach | |
| DB | Dual Bitmap (Annex C) (ITU-T) | |
| DB | Dynamic Binateness (of a variable) | |
| DB | Developmental Bulletin (USMC) | |