AFF, Aff or aff may refer to:
Affiliate marketing is a type of performance-based marketing in which a business rewards one or more affiliates for each visitor or customer brought by the affiliate's own marketing efforts.
Affirmative action (known as reservation in India and Nepal and positive discrimination in the UK; also known in a narrower context as employment equity in Canada and South Africa) is the policy of favoring members of a disadvantaged group who suffer or have suffered from discrimination within a culture.
Affective neuroscience is the study of the neural mechanisms of emotion. This interdisciplinary field combines neuroscience with the psychological study of personality, emotion, and mood.
Affordable housing is housing deemed affordable to those with a median household income as rated by country, State (province), region or municipality by a recognized Housing Affordability Index.
Affirmative action in the United States is a set of laws, policies, guidelines, and administrative practices "intended to end and correct the effects of a specific form of discrimination." These include government-mandated, government-sanctioned, and voluntary private programs that tend to focus on access to education and employment, specifically granting special consideration to historically excluded groups such as racial minorities or women.
The Affordable Weapon System is a US Navy program to design and produce a low cost "off the shelf" cruise missile launchable from a self-contained unit mounted in a standard shipping container.
Affective computing is the study and development of systems and devices that can recognize, interpret, process, and simulate human affects.
In the branch of mathematics called differential geometry, an affine connection is a geometric object on a smooth manifold which connects nearby tangent spaces, and so permits tangent vector fields to be differentiated as if they were functions on the manifold with values in a fixed vector space.
Affluence refers to an individual's or household's economical and financial advantage in comparison to a given reference group.