| ECPD | Eau Claire Police Department 
| Others |
| ECPD | El Cajon Police Department
| Others |
| ECPD | Electronic Continuing Professional Development
| Others |
| ECPD | Emerson College Police Department
| Others |
| ECPD | Energy Climate Policy Division
| Others |
| ECPD | Engineers Council for Professional Development
| Others |
| ECPD | Engineers' Council for Professional Development
| Others |
| ECPD | England Centre for Practice Development
| Others |
| ECPD | Enterprise Customer Profile Database
| Others |
| ECPD | European Center for Peace and Development
| Others |
| ECPD | European Centre for Peace and Development
| Others |
| ECPD | European Conference on Plasma Diagnostics
| Others |
| ECPD | European Cultivated Potato Database
| Others |