AF

AF, af, Af, etc. may refer to:

Arts and entertainment

• Af, one of the Angels of Punishment, a mythical character outlined in Gustav Davidson's 1967 book A Dictionary of Angels, Including the Fallen Angels
• AF (action figures) or the Action Force, part of the European version of the G.I. Joe toy and comicbook universe
• A.F. (band), a Swiss punk rock band started in 1992 and originally named Allpot Futsch
• A-F Records, an independent record label in Pittsburgh, Pennsylvania, US, founded by the band Anti-Flag

Businesses and organizations

• Abercrombie & Fitch, an American-based, international clothing retailer
• Académie française, the official institution responsible for overseeing the French language
• Acronym Finder, an online database of abbreviations (acronyms, initialisms, etc.)
• Action Française, a French far right political movement
• Adventist Forums, an organization of progressive Seventh-day Adventists
• ÅF, a Swedish technical consulting company
• AF Gruppen, a multi national construction and development company based in Norway
• Air France (IATA airline code and Euronext stock symbol "AF")
• Alabama and Florida Railway (reporting mark AF)
• Alliance Française, an international organization that aims to promote French language and culture
• American Freightways, a trucking company now operating as FedEx Freight East
• Anarchist Federation (British Isles), an Anarchist-Communist agitational organisation in Britain

Military

• AF Guardian, a warplane of the US Navy
• Air force
• Armed forces

Places

• Afghanistan, by 2-letter ISO, FIPS 10-4 and obsolete NATO country code
  • .af, the country code top-level domain for Afghanistan
• Agra Fort railway station, near Rawatpara, Agra, India
• American Fork, Utah, US

Science and technology

• Acre-feet, the quantity of water that covers one acre to a depth of one foot; equal to 43,560 cubic feet or 325,851 gallons
• Across flats (A/F), a measure of hexagonal nut flat size
• Advanced Format, a new disk format and access using sector sizes larger than 512 bytes
• Alternative frequency
• Anaerobic filter, a type of anaerobic digester
• Anisotropic filtering
• Atrial fibrillation, a form of cardiac arrhythmia
• Attofarad, an SI unit of electric capacitance
• Audio frequency
• Autofocus, the ability of a camera to focus automatically
• Amplify-and-Forward, a scheme of relay channel

Other uses

• Afrikaans language (ISO 639-1 language code AF)
• "...as fuck", meaning "very", in SMS language and internet messageboards