F20

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.