| Abbreviation | Description |
| EAC | East African Community |
| EADB | East African Development Bank |
| EAEC | Eurasian Economic Community |
| EAPC | Euro-Atlantic Partnership Council |
| EBRD | European Bank for Reconstruction and Development |
| EC | European Community |
| ECA | Economic Commission for Africa |
| ECE | Economic Commission for Europe |
| ECLAC | Economic Commission for Latin America and the Caribbean |
| ECO | Economic Cooperation Organization |
| ECOSOC | Economic and Social Council |
| ECOWAS | Economic Community of West African States |
| ECS | European Coal and Steel Community |
| ECSC | European Coal and Steel Community |
| EEC | European Economic Community |
| EEZ | exclusive economic zone |
| EFTA | European Free Trade Association |
| EIB | European Investment Bank |
| EMU | European Monetary Union |
| Endangered Species | Convention on the International Trade in Endangered Species of Wild Flora and Fauna (CITES) |
| Entente | Council of the Entente |
| Environmental Modification | Convention on the Prohibition of Military or Any Other Hostile Use of Environmental Modification Techniques |
| ESA | European Space Agency |
| ESCAP | Economic and Social Commission for Asia and the Pacific |
| ESCWA | Economic and Social Commission for Western Asia |
| est. | estimate |
| EU | European Union |
| Euratom | European Atomic Energy Community |
| Eutelsat | European Telecommunications Satellite Organization |