AF

AF, aF, af or .af may stand for:

AF

Businesses, organizations and projects

• Air France, IATA airline designator for Air France
• Abercrombie & Fitch, an American based, international clothing retailer
• Alliance française
• A-F Records, a record label
• Acronym Finder
• Alabama and Florida Railway, the Association of American Railroads reporting mark for Alabama and Florida Railway.
• Adventist Forums, an organization of progressive Seventh-day Adventists
• AF Gruppen, a multi national construction and development company based in Norway

Health, technology and science

• Aunt Flo, a euphemism for menstruation.
• Atrial fibrillation, a form of cardiac arrhythmia
• Anaerobic filter, a type of anaerobic digester
• Anisotropic filtering
• Autofocus
• Audio frequency
• Alternative frequency

Military

• AF Guardian, a warplane of the US Navy
• Air Force
• Armed Forces

Places

• American Fork, Utah
• Afghanistan, the 2-letter ISO (and obsolete NATO) country code for Afghanistan
• Midway Atoll JN-25

Pop culture and literature

• The Addams Family
• After Ford
• Akademi Fantasia
• Animal Farm
• Animal Forest
• Artemis Fowl

Other fiction

• AF or the Action Force, part of the European version of the G.I. Joe toy and comicbook universe

aF

• attofarad, an SI unit of electric capacitance

af

• 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
• af, the ISO 639 code for the Afrikaans language.
• A shortening of afro, the hairstyle

.af

• .af is the ccTLD (Country code top-level domain) for Afghanistan