Affinity may refer to:

Commerce, finance and law

  • Affinity (law), kinship by marriage
  • Affinity analysis, a market research and business management technique
  • Affinity Credit Union, a Saskatchewan-based credit union
  • Affinity Equity Partners, an Asian private equity firm
  • Affinity fraud, a type of scam targeting a specific demographic
  • Affinity marketing, a method of extending market reach by forming partnerships and cross-selling relationships
  • Affinity Partners, an American private equity firm

Religion and belief

  • Affinity (canon law), a kinship arising from the sexual intercourse of a man and a woman
  • Affinity (Christian organisation), network of conservative evangelical churches and Christian agencies
  • Affinity group, a private, non-commercial and non-governmental organisation formed around a shared interest or goal

Science and technology

  • Affinity, the UK's first road-legal solar car, built by Cambridge University Eco Racing
  • Affinity (mathematics), an affine transformation preserving collinearity
  • Affinity (pharmacology), a characterisation of protein-ligand binding strength
  • Affinity (sociology), a shared interest and commitment between persons in groups and/or willingness to associate
  • Affinity (taxonomy), a suggestion of common descent or type
  • Affinity chromatography, method of separating a biomolecule from a mixture
  • Affinity electrophoresis, general name for many analytical methods used in biochemistry and biotechnology
  • Affinity laws, laws used in hydraulics to express relationships between variables involved in fan or pump performance
  • Binding affinity, a measure of the interaction of ligands with their binding sites
  • Chemical affinity, used to describe or characterise elements' or compounds' readiness to form bonds
  • Electron affinity, energy released on formation of anions
  • Processor affinity, a computing term for the assignment of a task to a given core of a multicore CPU
  • Serif Europe/Canva's Affinity series of programs:
  • Affinity (software), an all-in-one graphics editor
  • Affinity Designer, a discontinued vector graphics editor
  • Affinity Photo, a discontinued raster graphics editor
  • Affinity Publisher, a discontinued desktop publishing application

Music

  • Affinity (band), a jazz/rock band
  • Affinity (Affinity album)
  • Affinity (Bill Evans album)
  • Affinity (Haken album)
  • Affinity (Oscar Peterson album)
  • Affinity (EP), a 2013 EP by the English band Press to Meco
  • Johnny Alegre Affinity, a jazz collective based in Manila

Other media

  • Affinity (novel), a 1999 novel by Sarah Waters
  • Affinity (film), a 2008 feature film based on the novel

  • "Affinity" (Stargate SG-1), an episode from season 8 of the TV sci-fi spin-off series Stargate SG-1

Other uses

  • Affinity (medieval), late medieval retainers of a monarch in "bastard feudalism"
  • Affinity, West Virginia

See also

  • Affine (disambiguation)
  • Affine transformation, a type of transformation applied to a geometry
  • Refining, also known as "affining"
  • Afinidad (disambiguation)