| Abbreviation | Definition |
|---|---|
| FHS | Findlay High School |
| FHS | Fishers High School |
| FHS | Fitzgerald High School |
| FHS | Flagstaff High School |
| FHS | Flanagan High School |
| FHS | Flathead High School |
| FHS | Florence High School |
| FHS | Folsom High School |
| FHS | Fontainebleau High School |
| FHS | Foothill High School |
| FHS | Fostoria High School |
| FHS | Framingham High School |
| FHS | Franklin High School |
| FHS | Frederick High School |
| FHS | Fredericksburg High School |
| FHS | Freedom High School |
| FHS | Freeport High School |
| FHS | Fremd High School |
| FHS | Fremont High School |
| FHS | Frenship High School |