| Abbreviation | Definition |
|---|---|
| GGW | Gelsenkirchner Gusstahl Werke |
| GGWAB | Ghanaian German Women Association Berlin |
| GHA | German Health Alliance |
| GHC | German Heavy Cruiser |
| GHE | German Healthcare Export |
| GHSG | German Hodgkin Study Group |
| GHW | German Hurricane Wrestling |
| GIBS | German Israeli Battery School |
| GICC | German ISO Credit Card |
| GIE | Ganz Im Ernst |
| GIGA | German Institute of Global and Area |
| GISB | German International School Boston |
| GISJ | German International School Jeddah |
| GISS | German International School Sydney |
| GISW | German International School Washington |
| GIZ | Gesellschaft für Internationale Zusammenarbeit |
| GJCA | German Jewish Children's Aid |
| GKP | German Kino Plus |
| GKS | Gesellschaft für Kanada Studien |
| GKU | German Kazakh University |