| FGS | F1 G1 Short 
| Others |
| FGS | Facchina Global Services
| Others |
| FGS | Family Group Sheet
| Others |
| FGS | Fanincapse Game System
| Others |
| FGS | Fantasy Gaming Society
| Others |
| FGS | Federal German Ship
| Others |
| FGS | Federation of Genealogical Societies
| Others |
| FGS | Female Genital Schistosomiasis
| Others |
| FGS | Fiat Grand Siena
| Others |
| FGS | Fifth Grade Student
| Others |
| FGS | Final Goal Scorer
| Others |
| FGS | Final Governing Standard
| Others |
| FGS | Final Governing Standards
| Others |
| FGS | Fine Grained Scalability
| Others |
| FGS | Fine Granular Scalability
| Others |
| FGS | Fine Guidance Sensor
| Others |
| FGS | Fine Guidance Sensors
| Others |
| FGS | Fine Guidance System
| Others |
| FGS | Finest Grading Services
| Others |
| FGS | Finished Goods Series
| Others |
| FGS | Fire Ground Survival
| Others |
| FGS | First Gear Start
| Others |
| FGS | First Gear Switch
| Others |
| FGS | First Goal Scorer
| Others |
| FGS | Flash Gaming Summit
| Others |
| FGS | Florabama Geospatial Solutions
| Others |
| FGS | Florida Genealogical Society
| Others |
| FGS | Florida Geological Survey
| Others |
| FGS | Fo Guang Shan
| Others |
| FGS | For God s
| Others |
| FGS | For God Sake
| Others |
| FGS | For God's Sake!
| Others |
| FGS | For Goodness Sake
| Others |
| FGS | Ford Garantie Schutzbrief
| Others |
| FGS | Ford Graphics System
| Others |
| FGS | Ford Grupo Sur
| Others |
| FGS | Forensic Genealogy Service
| Others |
| FGS | FOSS GIS Suite
| Others |
| FGS | Foundation for Global Scholars
| Others |
| FGS | Frankfort Girls Softball
| Others |
| FGS | Frech Gating System
| Others |
| FGS | Freedom Graphic Systems
| Others |
| FGS | Fruit Growers Supply
| Others |
| FGS | Full Gasket Set
| Others |
| FGS | Functional Golf System
| Others |
| FGS | Fusion Goggle System
| Others |
| FGS | Future Game Simulations
| Others |