| Abbreviation | Definition |
|---|---|
| GAX | Gamba, Gabon |
| GAYE | Yelimane, Mali |
| GAZ | Guasopa, Papua New Guinea |
| GBA | Big Bay, Vanuatu |
| GBB | Gara Djebilet, Algeria |
| GBC | Gasuke, Papua New Guinea |
| GBD | Great Bend, Kansas USA |
| GBE | Gaborone, Botswana |
| GBF | Negarbo, Papua New Guinea |
| GBG | Galesburg Municipal Airport, Galesburg, Illinois USA |
| GBJ | Marie Galante, French Antilles |
| GBK | Gbangbatok, Sierra Leone |
| GBL | Goulburn Island, Northern Territory, Australia |
| GBM | Garbaharey, Somalia |
| GBR | Great Barrington Airport, Great Barrington, Massachusetts USA |
| GBU | Khashm El Girba, Sudan |
| GBV | Gibb River, Western Australia, Australia |
| GBYD | Banjul-Yundum, Gambia |
| GBZ | Great Barrier Island, New Zealand |
| GCA | Guacamayas, Colombia |