| Abbreviation | Definition |
|---|---|
| ECASA | Electronic Commerce Association of South Africa |
| ECCAS | Economic Community for Central African States |
| ECCAS | Economic Community of Central African States |
| ECGBB | Eastern Cape Gambling and Betting Board (South Africa) |
| ECOCAS | Economic Community of Central African States |
| ECOWAS | Economic Community of the West Africa |
| ECOWAS | Economic Community of the West African States |
| ECOWAS | Economic Community Of West Africa States |
| ECOWAS | Economic Community Of West African States |
| ECOWAS | Economic Community of Western African States |
| ECOWAS | Economic Council of West African States |
| ECOWAS | Economy Community Of West African State |
| ECOWAS | Environmental Concerns Of West African States |
| ECSA | East Central and Southern African |
| ECSA | Engineering Council of South Africa |
| ECSAFA | East Central and Southern Africa Federation of Accountants |
| ECWA | Evangelical Church for West Africa |
| ECWA | Evangelical Church of West Africa |
| ECWA | Evangelical Churches of West Africa |
| ECWAS | Economic Community of West African States |