| Acronym | Definition |
|---|
| DDT | Dichlorodiphenyltrichloroethane (insecticide; CAS Number 50-29-3) |
| DDT | Don't Do That |
| DDT | Distributed Debugging Tool (Allinea) |
| DDT | Dividend Distribution Tax |
| DDT | Division of Diabetes Translation (CDC) |
| DDT | Documento Di Trasporto (Italian) |
| DDT | Deflagration to Detonation Transition |
| DDT | Design Development Test |
| DDT | Dynamic Debugging Tool |
| DDT | Dynamic Debugging Technique |
| DDT | DEC Debugging Tape |
| DDT | Damien's Dinner Time (pro wrestling move) |
| DDT | Dewey Defeats Truman (band) |
| DDT | Drop Dead Twice |
| DDT | Diamond Dude Turbo (Yu-Gi-Oh card game) |
| DDT | Digital Diagnostic Tester |
| DDT | Define Device Trigger (GPIB Command) |
| DDT | Direct Drive Turntable |
| DDT | Distortion Detection Technology (Peavey) |
| DDT | Digital Data Transmitter |
| DDT | Design, Development, and Test |
| DDT | Data Description Table |
| DDT | Damn Devastating Terror (pro wrestling move) |
| DDT | Differential Dieaway Technique |
| DDT | Differential Die-away Technique |
| DDT | Desi Dance Teams (dance coalition) |
| DDT | Dependence Detection Table |
| DDT | Drop Dead Thread (forum) |
| DDT | Dyadic Decision Tree |
| DDT | Detailed Design Tool |
| DDT | Distributed Decision-aid Tool |
| DDT | Dangerous Dudes on Tour (Return to Castle Wolfenstein multiplayer gaming clan) |
| DDT | Downsized Deployable Terminal |
| DDT | Divine Dance Troupe (UK) |
| DDT | Disk to Disk to Tape (data preservation) |
| DDT | Dossier de Diagnostic Technique (French sales surveys) |
| DDT | Direction de la Dynamique Territoriale (French: Directorate of Territorial Dynamics) |
| DDT | Direction Départementale des Territoires (French: Departmental Territories) |
| DDT | Due Diligence Team (various organizations) |