| Abbreviation | Definition |
|---|---|
| ECE | Economic Commission for Europe |
| ECFMG | Educational Commission on Foreign Medical Graduates |
| ECI | Election Commission of India |
| ECJ | Electoral Commission of Jamaica |
| ECK | Electoral Commission of Kenya |
| ECLA | Economic Commission for Latin America |
| ECLAC | Economic Commission for Latin America and Caribbean |
| ECLAC | Economic Commission for Latin America and the Caribbean |
| ECSA | Electoral Commission of South Australia |
| ECSWA | Economic and Social Commission for Western Asia |
| ECWA | Economic Commission for Western Asia |
| ECZ | Edger Commission of Zambia |
| EDBC | Election District Boundaries Commission |
| EDBC | Electoral Districts Boundaries Commission |
| EDPC | Eastern District Planning Commission |
| EEBC | Eritrea Ethiopia Boundary Commission |
| EEBC | Ethio Eritrean Border Commission |
| EEBC | Ethiopia Eritrea Boundary Commission |
| EEC | Economic Estimates Commission |
| EEOC | Equal Employer Opportunity Commission |