| Abbreviation | Definition |
|---|---|
| GS | General Staff |
| GS | General Support |
| GS | German Submarine |
| GS | Ghost Soldiers |
| GS | Glide Slope |
| GS | Gold Stripes |
| GS | Good Shot |
| GS | Government Service [as in Pay Scale] |
| GS | Great Snipers |
| GS | Great Soldiers |
| GS | Ground Station |
| GS | Ground Support |
| GSA | Galactic Security Army |
| GSA | General Services Administration |
| GSA | General Support Artillery |
| GSAB | General Support Aviation Battalion |
| GSD | Get Stuff Done |
| GSD | Graphical Situation Display |
| GSD | Ground Systems Division |
| GSDU | Ground Smart Display Unit |