| Acronym | Definition |
|---|
| ESSS➣Environment Services System Services |
| ESSS➣Ethiopian Space Science Society |
| ESSS➣External Stores Support System (US Army UH-60 helicopter) |
| ESSS➣Environmental Science Seminar Series (American Meteorological Society) |
| ESSS➣European School Science Symposium (competition) |
| ESSS➣Electronic Sensors and Systems Sector (Northrop Grumman Corporation) |
| ESSS➣Engineering Simulation and Scientific Software Ltda (Brazilian software company) |
| ESSS➣European Spallation Source Scandinavia (Sweden) |
| ESSS➣Enhanced Services Sales Support (Sprint) |
| ESSS➣Early Steps to School Success (Save the Children) |
| ESSS➣Ecclesiastical Sources for Slave Societies (project; Vanderbilt University) |
| ESSS➣East Side Science Squad |
| ESSS➣External Support Supply System |
| ESSS➣Electronic Staff Summary Sheet |
| ESSS➣Electronic Single Support Strategy |