| Abbreviation | Definition |
|---|---|
| EPN | Educator/ Practitioner Network |
| EPNL | Executive Program for Nonprofit Leaders |
| EPOC | Equal Parents Of Canada |
| EPON | European Privacy Officers Network |
| EPPR | Emergency Program for Poverty Reduction |
| ERA | European Radon Association |
| ERA | European Renal Association |
| ERC | Ethics Resource Center |
| ERCLA | Eagle River Chain of Lakes Association |
| ERDA | Earthwise Resource Development Australasia |
| ERDI | European Research and Development Institute |
| EREC | Efficiency and Renewable Energy Clearinghouse |
| ERGO | Euthanasia Research and Guidance Organization |
| ERI | EarthRights International |
| ERM | External Resource Members |
| ERP | Edmunds Reading Project |
| ERTF | Eastern Region Textile Forum |
| ERTF | Education Rights Task Force |
| ERTF | European Roma and Travellers Forum |
| ERTI | Emergency Response Training Institute |