| Abbreviation | Definition |
|---|---|
| ERCA | European Research Course on Atmospheres |
| ERCA | European Respiratory Care Association |
| ERCA | European Root Certification Authority |
| ERCA | European Ropes Course Association |
| ERCA | European Rural Community Alliance |
| ERCC | European Rugby Challenge Cup |
| ERCC | European Rugby Champions Cup |
| ERCE | European Regional Centre for Ecohydrology |
| ERCF | European Roma Cultural Foundation |
| ERCI | European Railway Cluster Initiative |
| ERCI | European Railway Clusters Initiative |
| ERCIP | European River Corridor Improvement Plans |
| ERD | European Report on Development |
| ERDF | European Regional Development Fund |
| ERDF | European Regional Development Funds |
| EREC | European Renewable Energy Council |
| EREF | European Real Estate Forum |
| EREF | European Regional Economic Forum |
| EREN | European Real Estate Network |
| ERF | European Road Federation |