| Abbreviation | Definition |
|---|---|
| EMAP | Engineering Materials Approved Products |
| EMC | ElectroMagnetic Compatibility |
| EMC | Enhanced Machine Controller |
| EMCS | Energy Management Control System |
| EMCS | Energy Monitoring and Control System |
| EMD | Electronic Metal Detector |
| EMS | Electronic Manufacturing Service |
| EMS | Electronic Muscle Stimulator |
| EMT | Emergency Medical Technician |
| EMV | Enhanced Motion Vehicle |
| EN | Europaischen Normen (composition of steel) |
| ENES | Emu Nova Entertainment System |
| EOC | Engine Oil Cooler |
| EOD | Electronic OverDrive |
| EOL | End-of-Life |
| EON | Edaran Otomobil National |
| EOPA | European Office Products Awards |
| EOS | Exigence Of Speed |
| EOS | Extremely Overpriced Stuff |
| EOSL | End of Service Life |