ACF or acf may refer to:

Organizations Asia Adivasi Cobra Force, extremist Santal organisation in Assam Arab Chess Federation Asian Chess Federation

Australia Australian Cat Federation, a standards organization for cat breeds Australian Chess Federation, the governing body for chess in Australia Australian Conservation Foundation, an Australian non-profit promoting ecological sustainability

Europe Action contre la Faim or Action Against Hunger, global humanitarian organization ACF Fiorentina, Associazione Calcio Fiorentina, Italian football club Army Cadet Force, British youth organisation that offers progressive military training to boys and girls aged 12 to 18 Ateliers et Chantiers de France, defunct French shipyard Automobile Club of France, men's club located on Place de la Concorde in Paris

North America Academic Competition Federation, an unincorporated non-profit organization that runs collegiate quizbowl tournaments Administration for Children and Families, the operating unit of the US Department of Health and Human Services American Car and Foundry Company, a manufacturer of railroad rolling stock since 1899, now known as ACF Industries American Checker Federation, a non-profit governing the game of American checkers in the US American Culinary Federation, a professional chefs' organization established in 1929

Others Active Citizen Force, temporary conscripts and volunteers in the South African Army Anti-Corruption Foundation, an international NGO founded by Russian opposition figure Alexei Navalny Associação Chapecoense de Futebol, a Brazilian football club

Science and technology Electronics and computing Access Control Facility, a prototype of the ACF2 third-party security software for IBM OS/VS Anisotropic conductive film, a conductive adhesive system used in the electronics industry

Medicine ACF (gene) Aberrant crypt foci, a preneoplastic lesion on the mucosa of the colon or rectum Asymmetric crying facies, a minor congenital anomaly

Other sciences Meade Advanced Coma-Free telescope design Autocorrelation function in time series statistics

Other uses ACF River Basin, Apalachicola-Chattahoochee-Flint River Basin in the southeastern US Aircraft railway station, station code, Melbourne Saint Lucian Creole French (ISO 639:acf), a French-based creole language spoken in Saint Lucia and Dominica Aral Talim Airport, IATA code ACF

See also ACFS (disambiguation)