| Abbreviation | Definition |
|---|---|
| ESC | Executive Sales Coordinator |
| ESD | Enterprise Service Director |
| ESE | Enterasys Systems Engineer |
| ESE | Environment And Safety Expert |
| ESEP | Engineer and Scientist Exchange Program |
| ESM | Educational Service Manager |
| ESP | Education Support Professional |
| ESR | Employment Service Register |
| EST | Electrical Service Technician |
| EST | Engineer Support Team |
| ESV | Engineer Squad Vehicle |
| ET | Early Termination |
| ET | Educational Trainer |
| ET | Enterostomal Therapist |
| ET | Evil Temptress |
| ET | Executive Team |
| ET | Executive Technical |
| ETA | English Teaching Assistant |
| ETC | Executive Transaction Coordinators |
| ETL | Engineer Topographic Laboratories |