| Acronym | Definition |
|---|
| ECSD➣Enhanced Csd |
| ECSD➣Edmonton Catholic School District (Edmonton, Alberta, Canada) |
| ECSD➣Enhanced Circuit Switched Data |
| ECSD➣East China School District (Michigan) |
| ECSD➣Elko County School District (Nevada) |
| ECSD➣Essex County Sheriff's Department (Massachusetts) |
| ECSD➣Eagle County School District (Colorado, USA) |
| ECSD➣Ellenville Central School District (New York) |
| ECSD➣Environmental and Conservation Services Department (Texas) |
| ECSD➣Enlarged City School District |
| ECSD➣Escrime Club Saint-Doulchard (French fencing club) |
| ECSD➣East Coast Sour Diesel |
| ECSD➣Ecumenical Council of San Diego County |
| ECSD➣Estonian Central Securities Depository |
| ECSD➣Electronic Communication System Design, LLC (Purcellville, VA) |