ERWA
| 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) |