| Acronym | Definition |
|---|
| ECCC➣Emerald City Comic Con (Seattle, WA) |
| ECCC➣Extraordinary Chambers in the Courts of Cambodia |
| ECCC➣Environment and Climate Change Canada |
| ECCC➣Electronic Colloquium on Computational Complexity |
| ECCC➣European Champion Clubs Cup (athletic competition) |
| ECCC➣East Central Community College |
| ECCC➣El Camino Community College (Torrance, CA) |
| ECCC➣El Camino Country Club (California) |
| ECCC➣East Contra Costa County (California) |
| ECCC➣Eastern Collegiate Cycling Conference |
| ECCC➣Electronic Commerce Council of Canada |
| ECCC➣European Communities Chemistry Council |
| ECCC➣Executive Committee Conference Call (various organizations) |
| ECCC➣Erie County Community Corrections (Erie, NY) |
| ECCC➣Evangelical Christian Church in Canada (est. 1804) |
| ECCC➣Employee Charitable Contribution Campaign |
| ECCC➣Edinburgh City Centre Company (UK) |
| ECCC➣École de Cuisine du Chef Corvez (French: Cooking School Chef of Corvez) |
| ECCC➣Essex County Cricket Club |
| ECCC➣Engineer Captains Career Course |
| ECCC➣Episcopal Camps and Conference Centers Inc |
| ECCC➣Energy Conversion and Conservation Center (Louisiana) |
| ECCC➣Eau Claire Community Council |
| ECCC➣European Club Crew Championships |
| ECCC➣Étoile Cassis Carnoux la Ciotat (French football club) |
| ECCC➣Emeritus Certified Cost Consultant |
| ECCC➣Engineering Control Center Console |
| ECCC➣European Command Coordination Committee |