| Abbreviation | Definition |
|---|---|
| GMBC | Gladewater Missionary Baptist Church |
| GMBC | Glen Meadows Baptist Church |
| GMBC | Greater Macedonia Baptist Church |
| GMBC | Greater Missionary Baptist Church |
| GMPC | Graham Memorial Presbyterian Church |
| GOCC | Gathering of CHRIST Church |
| GPCC | Greater Philadelphia Church of Christ |
| GRACE | Grantham Region Academies Church of England |
| GRLC | Georges River Life Church |
| GROW | Getting Ready Obedient Worshipers |
| GRUC | Gympie Regional Uniting Church |
| GSBC | Good Shepherd Baptist Church |
| GSCC | Great Spirit Community Church |
| GSCT | Gourock Schools and Churches Together |
| GSPC | Good Shepherd Presbyterian Church |
| GSPC | Government Street Presbyterian Church |
| GSWC | Good Shepherd Wesleyan Church |
| GTBC | Gospel Tabernacle Baptist Church |
| GTBC | Grace and Truth Bible Church |
| GTC | Ground Truth Church |