| Abbreviation | Definition |
|---|---|
| GCCY | God's Catalyst Changing Youth |
| GCCY | Grace Community Church Youth |
| GCF | Greenhills Christian Fellowship |
| GCFC | Grace Christian Fellowship Church |
| GCFI | Glory Christian Fellowship International |
| GCFP | Gujarati Christian Fellowship of Philadelphia |
| GCFS | Global Christian Foreign School |
| GCG | Good Catholic Girl |
| GCHS | Gehlen Catholic High School |
| GCHS | Geibel Catholic High School |
| GCHS | Gibault Catholic High School |
| GCI | Grace Communion International |
| GCK | God's Country Kids |
| GCL | Gator Christian Life |
| GCL | Greater Catholic League |
| GCN | Gay Christian Network |
| GCN | Global Christian Network |
| GCRE | Graduate Conference in Religion Ecology |
| GCS | Grace Christian School |
| GCSE | God Can See the End |