| Abbreviation | Definition |
|---|---|
| GPM | Ground Precautionary Message |
| GPMDM | Group Modem |
| GPMG | General Purpose Machine Gun |
| GPMG | General Purpose Munitions Grenade |
| GPMRC | Global Patient Movement Requirements Center |
| GPP | General Physical Preparation |
| GPR | Ground Penetrating Radar |
| GPRA | Government Performance and Results Act |
| GPRS | General Packet Radio Service |
| GPS | Global Positioning System |
| GPS | Gunners Primary Sight |
| GPS-ADD | Global Positioning System - Altitude Determination Device |
| GPSS | General Purpose Simulation System |
| GPW | Garwood Pro Wrestling |
| GPW | Geneva Convention Relative to The Treatment of Prisoners of War |
| GQ | General Quarters |
| GQS | General Quarters Station |
| GR | General Reconnaissance |
| GR | Georgius Rex |
| GR | German Rifle |