F4, F.IV, F04, F 4, F.4 or F-4 may refer to:
Aircraft
- Flanders F.4, a 1910s British experimental military two-seat monoplane aircraft
- Martinsyde F.4 Buzzard, a British World War I fighter version of the Martinsyde Buzzard biplane
- Fokker F.IV, a 1921 Dutch airliner
- Caproni Vizzola F.4, an Italian prototype fighter of 1939
- Lockheed F-4 Lightning, a reconnaissance variant of the Lockheed P-38 Lightning World War 2 fighter
- Fleetwings Sea Bird, a variant of which was the F-4
- A number of aircraft that first entered service with the U.S. Navy:
- Curtiss F4C, a 1920s version of the Naval Aircraft Factory TS biplane fighter
- Boeing F4B, a 1930s version of the Boeing P-12 biplane fighter
- Grumman F4F Wildcat, a carrier-based fighter aircraft in World War 2
- Vought F4U Corsair, a World War 2 fighter
- Douglas F4D Skyray, a carrier-based fighter/interceptor, first flight 1951
- McDonnell Douglas F-4 Phantom II, a supersonic fighter-bomber, first flight 1958
Art, entertainment, and music
- F4, or Flower 4, the four handsome boys appearing in Japanese manga Boys Over Flowers
- F4 (band), Taiwanese boy band
- F4 Thailand, a Thai television series
- F4, Middle F (musical note)
- Fantastic Four, fictional superhero team
Computing and technology
- Faugère's F4 algorithm in computer algebra
- F4, a function key on a computer keyboard
- f4transkript, a transcription software
- Samsung Galaxy F04, an Android-based smartphone manufactured by Samsung Electronics
Mathematics
- F4 (mathematics), the name of a Lie group and also its Lie algebra f4
- Finite field § Field with four elements
- F4, Fermat number
Sports and games
- F4 (classification), a wheelchair sport classification
- Formula 4, a class of car racing
- f4, designates a square in Algebraic notation (chess)
- 1. f4, or Bird's opening, an opening move in chess
Transportation and vehicles
- F4 (Istanbul Metro), a funicular railway in Istanbul Turkey
- F4 Cross Harbour, or Cross Harbour ferry services (2017–2020), Sydney, Australia
- F4 Pyrmont Bay, or Pyrmont Bay ferry services, Sydney, Australia
- Albarka Air (IATA code), a Nigerian airline
- Front-engine, four-wheel-drive layout, in automotive design
- MV Agusta F4 series, a series of motorcycles
- USS F-4, a U.S. Navy submarine that sank near Honolulu harbor in 1915
- LNER Class F4, a class of British steam locomotives
Other uses
- F4, a paper size
- F 4 Frösön, a former Swedish Air Force wing
- f/4, an f-number of an optical system such as a camera lens
- F-4 Object, or Rákosi bunker, a formerly secret nuclear shelter in Budapest, Hungary
- Form F-4, an American form used to register securities
- Nikon F4, a camera
- F4, a tornado intensity rating on the Fujita scale
- F4, an electrode site according to the 10–20 system (EEG)
See also
Topics referred to by the same termThis disambiguation page lists articles associated with the same title formed as a letter–number combination.If an internal link led you here, you may wish to change the link to point directly to the intended article. Category: