| Acronym | Definition |
|---|
| QED | Quod Erat Demonstrandum (Latin: Which Was to Be Demonstrated) |
| QED | Quantum Electrodynamics |
| QED | Quality Editor |
| QED | Quick Easy Disk |
| QED | Quality Education Data |
| QED | Quality Engineer Division |
| QED | Quantum Electro Dynamics |
| QED | Quite Easily Done |
| QED | Qualitative European Drug Research |
| QED | Quantum Electronic Devices (physics; various organizations) |
| QED | Question Everything Done |
| QED | Quadcap Embeddable Database |
| QED | Quality Education Data, Inc. |
| QED | Quantum Effect Design |
| QED | Quintain Estates and Development (UK) |
| QED | Queen's Economics Department (Queen's University Kingston, ON, Canada) |
| QED | Quantum Explosion Dynamo (gaming) |
| QED | Quick Editor |
| QED | Quantum Effects Devices |
| QED | Quantitative Economics Doctorate |
| QED | Quest for Economic Development (UK) |
| QED | Quantum Economic Development |
| QED | Queen Elizabeth Drive |
| QED | Quest Enabling Designs Ltd. (UK) |
| QED | Queues Enforth Development, Inc. |
| QED | Quickly Ends Dandruff |
| QED | Quest Engineering Development |
| QED | Quality Education @ A Distance (AU) |
| QED | Quicktime for Education |
| QED | Quechua, Ancash, Conchucos, Northern (SIL code, Peru) |
| QED | Quantitative Enterprise Development |
| QED | Quilting Engineering Divas |
| QED | Qualifying Educational Data |
| QED | Quinn Elicits Dismay |
| QED | Quality Evaluation for Dismantlement |
| QED | Quick and Easy Drawings |
| QED | Quick Epicenter Determination(s) (USGS) |
| QED | Quality Engineering Directorate |
| QED | Quickly and Easily Done (Colloquial: Mathematical proofs) |