F3 or F03 may refer to:

Computing

  • F3, a function key on a computer keyboard
  • F3 (language), the working name for JavaFX Script, a scripting language
  • Fat-Free Framework, a PHP web application framework

Military

  • Douglas F-3 Havoc, a photographic reconnaissance plane
  • Douglas F3D Skyknight (later F-10 Skyknight), a Douglas twin engine, mid-wing jet fighter
  • F 3 Malmslätt, a former Swedish Air Force unit
  • Felixstowe F.3, a 1917 British First World War flying boat
  • Hannover F.3, a World War I German prototype escort fighter
  • HMS Cossack (F03), a 1937 British Royal Navy destroyer
  • HMS F3, a British F class submarine
  • McDonnell F3H Demon (later F-3 Demon), a United States Navy carrier-based jet fighter
  • Mk F3 155mm, French self-propelled gun
  • RAF Tornado F3, a British fighter
  • USS F-3 (SS-22), a United States Navy submarine
  • A future Japanese fighter jet (F-3 or F-X) based on the i3 conceptual jet fighter and Mitsubishi X-2 prototype

Transportation

  • BYD F3, an automobile
  • EMD F3, a North American cab-style diesel locomotive introduced in 1945
  • F3 (Istanbul Metro), a funicular railway line in Istanbul, Turkey
  • F3 class, project name for the mega-cruise ship Norwegian Epic
  • Fokker F.III, a 1921 Dutch single-engine high-winged monoplane aircraft
  • Hinterhoeller F3, a yacht design by Canadian boat builder Hinterhoeller Yachts
  • MV Agusta F3 series, an Italian sports motorcycle
  • Spyder F3, a model of the three-wheeled motorcycle BRP Can-Am Spyder Roadster
  • Sydney Ferries' Parramatta River ferry services, known as the F3
  • Pacific Motorway (Sydney–Newcastle), formerly Sydney–Newcastle Freeway and commonly known as F3
  • LNER Class F3, a class of British steam locomotives

Arts

  • F3 (manga) (F³: Frantic, Frustrated & Female), a hentai manga series
  • F3 (film), a 2022 Indian Telugu-language film by Anil Ravipudi, a sequel to F2 (2019)
  • F3, an album by Emade and Fisz

Other

  • F3 (classification), a wheelchair sport classification
  • F3 (font format), created by Folio, Inc
  • F3 (gene), a protein
  • F3 isoprostane
  • F3 Nation, a network of free peer-led workouts for men in the U.S.
  • Form, fit and function, an engineering term relating to design processes
  • Formula Three, a class of automobile racing
  • Forsmark 3, a unit at Forsmark Nuclear Power Plant, Sweden
  • Motorola Motofone F3, a mobile phone
  • Nikon F3, an SLR camera
  • Taito F3 System, a 1992 arcade system board
  • A tornado intensity rating on the Fujita scale
  • F<sub>3</sub>, a type of formant in speech science
  • F3, an EEG electrode site according to the 10-20 system
  • F3 Derby, association football rivalry between Central Coast Mariners and Newcastle Jets

See also

  • F2 (disambiguation)
  • 3F (disambiguation)