| Abbreviation | Definition |
|---|---|
| GTS | Green Tobacco Sickness |
| GTS | GNS Test Station |
| GTS | General Test Support |
| GTS | Global Telecommunication System |
| GTST | Gas Turbine System Technician |
| GTT | Glucose Tolerance Test |
| GTTS | Drops per minute |
| GU | Gastric ulcer |
| GU | Genito Urinary |
| GUCP | Ground Umbilical Carrier Plate |
| GUD | Genital Ulcer Disease |
| GUGK | Glavnoye Upravileniye Geodesii I Kartografii |
| GUI | Graphical User Interface |
| GUID | Globally Unique Identifier |
| GUIDE | Generalized Unbiased Interaction Detection and Estimation |
| GUIDE | General Unemployment Insurance Development Effort |
| GUL | GSE Utilization List |
| GURFRIP | Global Utility Restructure For Relative Intelligent Process |
| GUSB | Guided Unified S-Band |
| Guv | Governor |
| GV | Get Value |
| GV | Granulosis Virus |
| GVA | Guest Virtual Address |
| GVA | General Visceral Afferent [nerve] |
| GVE | General Visceral Efferent [nerve] |
| GVHD | Graft versus Host Disease |
| GVHD | Graft-Versus Host Disease |
| GVT | Ground Vibration Test |
| GVTA | Ground Vibration Test Article |
| GWA | General Work Area |
| GWAC | Ground Water Advisory Committee |
| GWC | Grown Wounded Child |
| GWC | GroundWater Contamination |
| GWC | Green Waste-based Compost |
| GWCI | Ground Water Canal Irrigation |
| GWCP | GroundWater Contamination Potential |
| GWCP | General Waterway Construction Permit |
| GWI | Gulf War Illness |
| GWIP | Ground Water Improvement Pond |
| GWP | Global Warming Potential |
| GWPP | Ground Water Protection Program |
| GWPP | Ground Water Protection Pollcy |
| GWPP | Global Warming Petition Project |
| GWTF | Grassland Water Task Force |
| GWTI | Ground Water Tank Irrigation |
| GWTN | Global Wood Trade Network |
| GWTT | GroundWater Treatment Technologies |
| GWTT | GroundWater Travel Time |
| GWTU | Ground Water Treatment Unit |
| GWW | Great Western War |