| Abbreviation | Definition |
|---|---|
| FJRHS | Francis Joseph Reitz High School (Evansville, Indiana, USA) |
| FLAMS | Forest Lake Area Middle School |
| FLASH | Fun Learning After School Hours |
| FLES | Foreign Language Elementary School |
| FLES | Foreign Language in Elementary Schools |
| FLES | Foreign Languages in Elementary Schools |
| FLHS | Fair Lawn High School |
| FLHS | Fairfield Ludlowe High School |
| FLHS | Foreign Language High School |
| FLHS | Fort Lauderdale High School |
| FLHS | Fort Lee High School |
| FLHS | Fox Lane High School |
| FLHS | Francis Lewis High School |
| FLHS | Fred Longworth High School |
| FLMS | Florida League of Middle Schools |
| FLMS | Floyd Light Middle School |
| FLMS | Fort Loudoun Middle School |
| FLMS | Fort Lupton Middle School |
| FLMS | Fox Lane Middle School |
| FLMS | Freetown Lakeville Middle School |