AF

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

This nuts

Music

• 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, United States originated by the band Anti-Flag

Organizations

• Abercrombie & Fitch, an American-based, international clothing retailer
• Acronym Finder, an online database of abbreviations (acronyms, initialisms, etc.)
• 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
• Alliance Française
• Anarchist Federation (British Isles), an Anarchist-Communist agitational organisation in Britain

Places

• Afghanistan, by 2-letter ISO, FIPS 10-4 and obsolete NATO country code
• .af, the ccTLD (country code top-level domain) for Afghanistan
• American Fork, Utah, United States

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

Transportation

• Agra Fort railway station, near Rawatpara, Agra, India
• Air France, from its IATA airline code "AF" (and the same symbol as stock symbol in Euronext)
• Alabama and Florida Railway, from its reporting mark
• American Freightways, a trucking company now operating as FedEx Freight East

Other uses

• Afrikaans language, by ISO 639-1 language code
• Af, one of the Angels of Punishment, 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