| Abbreviation | Definition |
|---|---|
| FSYS | Florida Specific Youth Survey |
| FUEL | For Use in Everyday Life |
| FUMY | First United Methodist Youth |
| FUN | Friendship, Unity, and Nobleness |
| FUYA | Franklin United Youth Academy |
| FYA | Fairburn Youth Association |
| FYA | Fitzrovia Youth in Action |
| FYA | Foster Youth in Action |
| FYAA | Fairfield Youth Athletic Association |
| FYAA | Farmington Youth Athletic Association |
| FYAA | Frankfort Youth Athletic Association |
| FYAA | Freetown Youth Athletic Association |
| FYAB | Ferguson Youth Advisory Board |
| FYAP | Family and Youth Automation Project |
| FYAP | Fishers Youth Assistance Program |
| FYAP | Foster Youth Achievement Program |
| FYB | Fallbrook Youth Baseball |
| FYB | Falmouth Youth Baseball |
| FYB | Fluvanna Youth Baseball |
| FYB | Frenship Youth Baseball |