| Abbreviation | Definition |
|---|---|
| ESSA | Eureka Springs School of the Arts |
| ESSB | Eastern Shores School Board |
| ESSD | European School Sport Day |
| ESSD | European School Sports Day |
| ESSD | Excelsior Springs School District |
| ESSR | Eligible School Summary Report |
| ESSS | East Spring Secondary School |
| ESSS | European Schools Science Symposium |
| ESSS | European Summer School for Scientometrics |
| ESSSN | Eastern Suburbs Sustainable Schools Network |
| ESST | Edinburgh School of Supernatural Transformation |
| ESTM | European School of Transfusion Medicine |
| ESUA | European School of Urbanism and Architecture |
| ESUC | Egyptian Schools Union Catalog |
| ESWA | Excellence in School Wellness Award |
| ESY | Extended School |
| ETCS | East Tennessee Chinese School |
| ETES | Elizabeth Traditional Elementary School |
| ETES | Elm Tree Elementary School |
| ETFO | Elementary Teachers' Federation of Ontario |