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
• 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
• Almost Family episode titles tend to be "[Adjective] AF"

Businesses and organizations

European

• ÅF, a Swedish technical consulting company
• AF Gruppen, a multinational construction and development company based in Norway
• Académie française, the official institution responsible for overseeing the French language
• Action Française, a French far right political movement
• Anarchist Federation (British Isles), an Anarchist-Communist agitational organisation in Britain

International

• Abercrombie & Fitch, an American-based, international clothing retailer
• Air France (IATA airline code and Euronext stock symbol "AF")
• The Adaptation Fund, a UN organization responsible for climate change adaptation
• Adventist Forums, an organization of progressive Seventh-day Adventists
• Alliance Française, an international organization that aims to promote French language and culture

Elsewhere

• American Freightways, a U.S. trucking company now operating as FedEx Freight East

Language

• Académie française, the official institution responsible for overseeing the French language
• Alliance Française, an international organization that aims to promote French language and culture
• Acronym Finder, an online database of abbreviations (acronyms, initialisms, etc.)
• Afrikaans language (ISO 639-1 language code AF)
• "...as fuck", meaning "very", in SMS language and internet messageboards

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

Acoustics and communications

• Amplify-and-Forward, a scheme of relay channel
• Alternative frequency
• Audio frequency

Units of measure

• Acre-feet, the quantity of water that covers one acre to a depth of one foot
• Attofarad, an SI unit of electric capacitance

Visual arts

• Autofocus, the ability of a camera to focus automatically
• Anisotropic filtering

Other uses in Science and technology

• Af, the Köppen climate classification for a tropical rainforest climate
• 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
• Anaerobic filter, a type of anaerobic digester
• Arcuate fasciculus, a nerve bundle in the brain
• Atrial fibrillation, a form of cardiac arrhythmia

Other uses

• Alabama and Florida Railway (reporting mark AF)
• Anno Fascista, a year in the Italian Fascist calendar