F20, F-20, F.XX, or F-XX may refer to:
- F20 manual transmission, a General Motors transmission
- Northrop F-20 Tigershark, a combat aircraft
- Farmall F-20, a model of Farmall tractor
- Fokker F.XX, a Dutch airliner
- Fujifilm FinePix F20, a digital camera
- HMS Gurkha (F20), a British ship
- Schizophrenia ICD-10 code
- BMW 1 Series (F20)
- A Honda F engine
- Fluorine-20 (F-20 or 20F), an isotope of fluorine
- F20 (full, F20T12) is a very common size of 24" x 1.5" (610mm x 38mm) fluorescent lamp used in many parts of the world.
See also
edit- F/A-XX, an American development and acquisition program for a sixth-generation jet fighter
- FXX (disambiguation)
- 20F (disambiguation)