FA, Fa or fa may refer to:

People

  • Fa of Xia, King of China 1747–1728 BC
  • Fa Ngum (1316–1393), founder and ruler of the Lao kingdom of Lan Xang
  • Fa Ziying (1964–1999), Chinese serial killer

Places

  • Fa, Aude, a commune of the Aude ' in France
  • Friends Academy, Locust Valley, New York, US

Arts and entertainment

  • Fa (musical note)
  • Fa Yuiry, a fictional character in Mobile Suit Zeta Gundam
  • Fantasy Advertiser, later FA, UK fanzine
  • Firearms (video game), 1998
  • Fur Affinity, a furry fandom-centric art community website

Government, law and politics

  • Fa (philosophy), a Chinese concept
  • Falange Auténtica, a Spanish political party
  • Finance Act
  • Fisheries Agency, Taiwan

Languages and alphabets

  • Fa (letter) of the Arabic abjad
  • Faʼ language, Bantu language of Cameroon
  • fa, ISO 639-1 code of the Persian language

Mathematics, science, and technology

  • Factor analysis, a statistical method
  • Fanconi anemia, a genetic disease
  • Fayalite, an olivine mineral
  • Femtoampere (fA)
  • Fluorescein angiography, for eye examination
  • Folic acid, a B vitamin
  • Fractional anisotropy, degree of anisotropy
  • Friedreich's ataxia, a genetic disease
  • Nikon FA, a camera

Military

  • Fedorov Avtomat, Russian one of the world's first operational automatic rifles
  • Forschungsamt, Nazi German intelligence agency
  • Frontal Aviation, Soviet Air Forces battlefield air defence
  • Fleet Admiral, usually the highest rank of naval officers

Sport

  • The Football Association, regulatory body, England
  • First ascent, of a mountain
  • Football association, a governing body for association football

Transport

  • ALCO FA, a US locomotive
  • Toyota FA, a truck
  • Area forecast, in aviation
  • Ferrocarriles Argentinos, Argentine railways
  • Safair, a South African airline, IATA code
  • NZR F<sup>A</sup> Class, New Zealand locomotive class

Other uses

  • Faculty of Arts or Intermediate of Arts, a high school diploma
  • Fa (brand), of personal care products
  • fa’ or Fall (unit), obsolete Scottish length unit
  • Food Addicts in Recovery Anonymous (FA)
  • Fa, a note in Solfège