| Acronym | Definition |
|---|
| ETD | Economics and Technology Division (EPA) |
| ETD | Education and Training Development |
| ETD | Effective Transfer Date |
| ETD | Electric Transmission Demonstrator |
| ETD | Electron Transfer Dissociation |
| ETD | Electronic Theses and Dissertations |
| ETD | Electronic Transfer Device |
| ETD | Electronic Tuning Device |
| ETD | Empfohlene Tagesdosis (German product labeling) |
| ETD | End of Train Device (railroads/trains) |
| ETD | Energy Technology Development |
| ETD | Energy Technology Division |
| ETD | Enhanced Trickle-Down (water acidification model) |
| ETD | Enlisted Training Directorate |
| ETD | Enlisted Training Division |
| ETD | Equal Treatment Directive (EU) |
| ETD | Estimated Time of Delivery |
| ETD | Estimated Time of Departure |
| ETD | Estuary Transit District (Connecticut, USA) |
| ETD | European Telework Development |
| ETD | Exchange Traded Derivative |
| ETD | Executive Transportation Detachment (US Navy) |
| ETD | Expected Time of Departure |
| ETD | Experimentation and Test Directorate |
| ETD | Explosive Trace Detection (technology/machine) |
| ETD | Extension Trunk Dialling |
| Etd | Total Transportation Energy Demand (Carolina Environmental Program) |
| ETD | Ebx Transfer Data |
| ETD | External Type Declaration |