| Acronym | Definition |
|---|
| IDG | International Data Group |
| IDG | International Deployment Group (Australian Federal Police) |
| IDG | Industrial Development Group (various locations) |
| IDG | Integrated Drive Generator |
| IDG | Internet Development Group (various organizations) |
| IDG | Installation Design Guide |
| IDG | Internet Discussion Group |
| IDG | Infectious Disease Group |
| IDG | International Diagnostic Group (UK) |
| IDG | Idle Waiting to Load (US Navy) |
| IDG | Inset Dielectric Guide |
| IDG | International Dangerous Goods (mail, shipping) |
| IDG | Isothermal Dendritic Growth |
| IDG | Internal Drive Generator |
| IDG | Indiscernibility Definition Graph |
| IDG | Inspector of Degaussing |
| IDG | Integrated DAMA (Demand Assigned Multiple Access) GATM (Global Air Traffic Management) (avionics communications upgrade program) |
| IDG | Individual Drop Glider |