| ECCG | Early Childhood Construction Grant 
| Others |
| ECCG | East Cork Camera Group
| Others |
| ECCG | Eco Counselling Center Galati
| Others |
| ECCG | Electronic Customs Coordination Group
| Others |
| ECCG | Emerging Consumer Cultures Group
| Others |
| ECCG | English Conversation Communities for Grads
| Others |
| ECCG | Enhanced Computer Control Group
| Others |
| ECCG | Esophageal Complications Consensus Group
| Others |
| ECCG | European Centre for Common Ground
| Others |
| ECCG | European Centre for Corporate Governance
| Others |
| ECCG | European Chapters Coordinating Group
| Others |
| ECCG | European Chapters Coordination Group
| Others |
| ECCG | European Collaborative Clinical Group
| Others |
| ECCG | European Consumer Consultative Group
| Others |
| ECCG | European Cybersecurity Certification Group
| Others |
| ECCG | Evil Cookies Cosplay Group
| Others |
| ECCG | Executive Client Coverage Group
| Others |