| Abbreviation | Definition |
|---|---|
| ECI | European Citizens' Initiative |
| ECI | European Coalition for Israel |
| ECI | European Color Initiative |
| ECI | European Community Industry |
| ECI | European Construction Institute |
| ECI | European Corpus Initia |
| ECI | European Corpus Initiative |
| ECIA | European Centre for International Affairs |
| ECIB | European Chamber of International Business |
| ECIB | European Collective Investment Bond |
| ECIC | European Conference on Intellectual Capital |
| ECIC | European Congress on Immunotherapies in Cancer |
| ECIE | European Center for Innovation and Entrepreneurship |
| ECIE | European Conference on Innovation and Entrepreneurship |
| ECIIA | European Confederation of Institutes of Internal Auditing |
| ECIL | European Certificate in Intergenerational Learning |
| ECIL | European Conference on Information Literacy |
| ECIM | European Congress for Integrative Medicine |
| ECIP | European Convergence and Implementation Plan |
| ECIP | European Customs Information Portal |