| Acronym | Definition |
|---|
| ECGC | Epigallocatechin Gallate (aka Epigallocatechin-3-Gallate; antioxidant) |
| ECGC | École de Culture Générale et de Commerce (French: School of Commerce and General Knowledge; Switzerland) |
| ECGC | Enterprise Consortium of the Gulf Coast |
| ECGC | East Caribbean Group of Companies (trade union; St. Vincent & the Grenadines) |
| ECGC | E.Coli Genome Center (University of Wisconsin) |
| ECGC | Empowerment Center of Greater Cleveland (est. 1966; Cleveland, OH) |
| ECGC | Export Credit and Guarantee Corporation of India Ltd. |
| ECGC | East Coast GhostHunters Club (New York) |