AFF

AFF is a three-letter acronym or an abbreviation that may stand for:

Organizations

* Afghanistan Football Federation, the governing body of football in Afghanistan
* ASEAN Football Federation, a subset of nations within the Asian Football Confederation from Southeast Asia
* Aspies For Freedom, a group which is at the forefront of the autism rights movement

Companies

* Adult FriendFinder, a commercial website that claims to be the world's largest sex and swinger personals community online
* American Family Fitness, a Virginia-based fitness organization

Other

* A Fine Frenzy, a singer
* Abbreviation for Above Finished Floor - Architectural Term
* Accelerated Freefall, a method of skydiving training
* Advance fee fraud, a confidence trick in which the target is persuaded to advance relatively small sums of money in the hope of realizing a much larger gain
* .aff, a filename extension of:
** Advanced Forensics Format
** AGEMA infrared cameras (now part of FLIR Systems)
** AnyForm
** OpenOffice.org
* "affinis" ("related to") in biological nomenclature, to characterize undescribed taxa (see also "cf")
* The IATA airport code for the airfield at the United States Air Force Academy