| Acronym | Definition |
|---|
| ERWG➣European Regional Working Group (est. 1995; International Commission on Irrigation and Drainage) |
| ERWG➣Emergency Response Working Group |
| ERWG➣Economic Relaunch Working Group (Hong Kong) |
| ERWG➣External Relations Working Group (various organizations) |
| ERWG➣Electronic Reporting Working Group |
| ERWG➣Energy Region Weiz Gleisdorf (Austria) |