| Abbreviation | Definition |
|---|---|
| ES | Easter Seals |
| ESA | Esperanza Sociadad Anonima |
| ESAO | European Society of Aesthetic Orthodontics |
| ESCAP | Economic and Social Commission for Asia and the Pacific |
| ESCPA | Edmonton Society for the Prevention of Cruelty to Animals (Alberta, Canada) |
| ESCWA | Economic and Social Commission for Western Asia |
| ESF | English Speaking Foundation |
| ESG | Educational Support Group |
| ESH | Elephant Sanctuary in Hohenwald |
| ESMI | EarthShare of Michigan |
| ESMO | European Society for Medical Oncology |
| ESNOH | Easter Seals of Northern OHio |
| ESPB | Education Standards and Practices Board |
| ESPCA | Emergency Shelter Program, California |
| ESPHI | European Society for Paediatric Haematology and Immunology |
| ESPNC | Egyptian Society of Perinatal NeuroCare |
| ESRA | English Speaking Residents Association |
| ESSCO | Engineering Students Societies' Council of Ontario |
| ESSEMI | Easter Seals of SouthEast Michigan |
| ESSI | Education & Science Society, Inc. |