| Abbreviation | Definition |
|---|---|
| GBPS | Global Brand Protection Summit |
| GBTP | Greater Boston Tea Party |
| GC | General Conference |
| GCAC | Girls Catholic Athletic Conference |
| GCAC | Gulf Coast Athletic Conference |
| GCAI | Global Conference on Artificial Intelligence |
| GCB | German Conference on Bioinformatics |
| GCBC | Ghana Catholic Bishops Conference |
| GCBC | Greater China Business Conference |
| GCBM | Georgia Conference of Black Mayors |
| GCBM | Global Conference On Business Management |
| GCCE | Global Conference on Consumer Electronics |
| GCCF | Georgia Conference on Children and Families |
| GCCF | Global Climate Change Forum |
| GCCL | Global Cement Conference Libya |
| GCCW | Grid and Cooperative Computing Workshop |
| GCET | Global Conference on Environmental Taxation |
| GCMC | General Conference Mennonite Church |
| GCMW | General Conference of Methodist Women |
| GCON | Global Conference on NeoRetroism |