FJ may refer to:

Places

  • Fiji (ISO 3166-1 alpha-2 country code)
  • .fj, the country code top level domain (ccTLD) for Fiji
  • Fijian language (ISO 639-1 language code)
  • Fujian, a province of China

Vehicles

  • FJ Fury, an early Cold War fighter aircraft of the US Navy
  • Flying Junior, a sailing dinghy
  • Holden FJ, an Australian car
  • Jeep FJ, a compact delivery van
  • Toyota FJ Cruiser, a sport utility vehicle
  • Yamaha FJ, motorcycle

Science and mathematics

  • The FASEB Journal, a scientific journal of experimental biosciences
  • Femtojoule (fJ), an SI unit of energy equal to 10<sup>−15</sup> joules
  • Fritz John conditions, conditions in optimization problems

Media

  • FictionJunction, a J-pop group
  • The FJ Holden, an Australian film

Military

  • , German paratroopers
  • , a military rank of the Bundeswehr
  • FJ ABM, an anti-ballistic missile
  • Young Force (), the former youth wing of the Fuerza Nueva
  • Youth Front (), a Spanish terrorist organization

Aviation

  • Fiji Airways (IATA code)
  • Williams FJ33 and FJ44, families of turbofan jet engines

Other uses

  • FJ Management, an American corporation
  • FJ Reitz High School, a public high school in Evansville, Indiana
  • Formula Junior, an auto racing class
  • Sony Vaio FJ, a mid-2000s series of laptops
  • Fulbright & Jaworski, former United States law firm

<!-- Do not add Fourth of July -->

See also

  • FJD (disambiguation)
  • FJS (disambiguation)