| Acronym | Definition |
|---|
| CGCG➣Catalogue of Galaxies and of Clusters of Galaxies (astronomy) |
| CGCG➣Center for Good Corporate Governance (South Korea and Indonesia) |
| CGCG➣Center for Global Change and Governance (Rutgers University; New Jersey) |
| CGCG➣Central Giant-Cell Granuloma |