| Abbreviation | Definition |
|---|---|
| EROS | Earth Resources Observation Satellite |
| ERS | Earth Resources Satellite |
| ERS | ESA (European Space Agency) Remote-sensing Satellite |
| ERS | European Remote Sensing |
| ERS-1/ERS-2 | European Remote-sensing Satellite-1/-2 |
| ERTS | Earth Resources Technology Satellite |
| ES | Earth Standard |
| ES | Executive Secretariat |
| ESA | Economics and Statistics Administration |
| ESA | Endangered Species Act |
| ESDIM | Earth System Data and Information Management |
| ESF | European Science Foundation |
| ESMR | Electronic Scanning Microwave Radiometer |
| ESOC | European Space Operations Center |
| ESP | Economical Space Position |
| ESRA | Environmental Science Research Associates |
| ESRIN | European Space Research Institute |
| ESSA | Environmental Science Services Administration |
| ESSR | Excess Salmon to Spawning Requirements |
| EST | Earth Subsolar Temperature |