| Abbreviation | Definition |
|---|---|
| ECOI | European Country of Origin Information |
| ECON | European Community Organizing Network |
| ECOP | European Centres for Outreach in Photonics |
| ECOP | European Conference of Oncology Pharmacy |
| ECOP | European Congress of Oncology Pharmacy |
| ECOP | European Congress Of Protistology |
| ECOPS | European Committee on Ocean and Polar Sciences |
| ECOPS | European Contractor Online Processing System |
| ECOS | European Coalition on Oil in Sudan |
| ECP | European Certificate of Psychotherapy |
| ECP | European Cooperative Programme |
| ECP | European Cultural Parliament |
| ECPA | European Crop Protection Association |
| ECPD | European Center for Peace and Development |
| ECPD | European Centre for Peace and Development |
| ECPD | European Conference on Plasma Diagnostics |
| ECPD | European Cultivated Potato Database |
| ECPE | European Center for Power Electronics |
| ECPF | European Co Production Forum |
| ECPI | European Council For Plasticisers And Intermediates |