| Acronym | Definition |
|---|
| ERWA➣Erotica Readers & Writers Association |
| ERWA➣Eel River Wildlife Area (Canada) |
| ERWA➣Econ River Wilderness Area (Florida) |
| ERWA➣Ellicott Rock Wilderness Area (US Forest Service) |
| ERWA➣Energy Recreation and Welfare Association |
| ERWA➣Elk River Watershed Association (est. 1994; Minnesota) |