| Abbreviation | Definition |
|---|---|
| FUSA | Fairfield United Soccer Association |
| FUSA | Farmington United Soccer Association |
| FYSA | Fairbanks Youth Soccer Association |
| FYSA | Flatonia Youth Soccer Association |
| FYSA | Florida Youth Soccer Association |
| FYSA | Fluvanna Youth Soccer Association |
| FYSA | Foothills Youth Soccer Association |
| FYSD | Free Youth Soccer Drills |
| GASA | Georgia Amateur Soccer Association |
| GASL | German-American Soccer League |
| GCSA | Graves County Soccer Association |
| GCSA | Green Country Soccer Association |
| GESC | Gallatin Elite Soccer Club |
| GFSC | Great Falls Soccer Club |
| GFSC | Greater Flemington Soccer Club |
| GHSP | Greater Harford Soccer Park |
| GLSA | Greater Libertyville Soccer Association |
| GLSL | Great Lakes Soccer League (Canton, MI) |
| GLSL | Greater Louisville Soccer League |
| GMSA | Greater Memphis Soccer Association |