Class F
- CIÉ 501 Class
- Class F cable
- Class F fire
- Class F fly ash
- F type (disambiguation)
- F-Class (shooting sport)
- F-class Melbourne tram
- F-class Sydney tram
- F-class destroyer (disambiguation)
- F-class escort ship
- F-class submarine (disambiguation)
- F-segment
- Fédération Aéronautique Internationale
- NZR F class
- Stellar classification