FHHS
| Acronym | Definition |
|---|---|
| FHHS | Friday Harbor High School (Washington) |
| FHHS | Faculty of Health and Human Sciences (Thames Valley University; UK) |
| FHHS | Fort Hamilton High School (Brooklyn, New York) |
| FHHS | Francis Howell High School (St.Louis, MO) |
| FHHS | Fountain Hills High School (Fountain Hills, AZ) |
| FHHS | Fort Hunt High School (Fairfax, VA, USA) |
| FHHS | Forrest Hills High School (Michigan) |