| Abbreviation | Definition |
|---|---|
| GB | Grand Bazar |
| GBC | Georgia Baptist Convention |
| GBC | The Greatest Being Conceivable |
| GBCA | Grace Baptist Christian Academy |
| GBCE | Grace Baptist Church Evans |
| GBCF | Greater Bridgeport Christian Fellowship |
| GBCS | Grace Brethren Christian School |
| GBCS | Greater Beckley Christian School |
| GBD | Gospel Based Discipleship |
| GBD | Grace Based Discipline |
| GBE | Good Becomes Evil |
| GBF | Grace Bible Fellowships |
| GBG | God's Best Gifts |
| GBGM | General Board of Global Ministries |
| GBMB | Georgia Baptist Mission Board |
| GBN | Global Buddhist Network |
| GBNI | Girls' Brigade Northern Ireland |
| GBS | Glenbrooke Bible Study |
| GBS | Graduate Bible Study |
| GBSC | General Baptist State Convention |