| Abbreviation | Definition |
|---|---|
| EMAP | Environmental Monitoring and Assessment Program |
| EMCO | Egyptian Maritime Consultant Office |
| EMEC | European Marine Energy Centre |
| EMEP | Cooperative Program for Monitoring and Evaluation of Long Range Transmission of Air Pollution in Europe |
| EMP | Environmental Monitoring and Prediction |
| EMVER | Experimento Meteorologico del Verano |
| ENACW | East North Atlantic Central Water |
| ENDEX | ENvironmental inDEX |
| ENHD | Egyptian Navy Hydrographic Department |
| ENMOC | El Nino MOnitoring Center |
| ENS | European Network for Science |
| ENSO | El Nino Southern Oscillation |
| EOB | Executive Office Building |
| EOF | Empirical Orthogonal Function |
| EOM | Earth Observation Mission |
| EOS | Earth Observation Satellite |
| EOSAT | Earth Observation Satellite Company |
| EOSDIS | Earth Observing System Data and Information System |
| EOTH | Eyes On The Horizon |
| EPA | Environmental Protection Agency |