| Acronym | Definition |
|---|
| ECDO | Ethnic Community Development Organization (Bangladesh) |
| ECDO | Experts-Conseils pour le Développement des Organisations (French: Development Organizations Consulting Experts) |
| ECDO | European Cell Death Organization (est. 1994) |
| ECDO | Ecumenical Community Development Organization (New York, NY) |
| ECDO | Enteric Cytopathic Dog Orphan |
| ECDO | Étoile Cycliste Duquesne Oullins (French cycling club) |
| ECDO | Études Composites Distribution Ouest (French: Studies Composites Distribution West) |
| ECDO | Electronic Community Dial Office |