KF

KF or Kf may refer to: Businesses and brands: KF Aerospace, a Canadian aerospace company KF Cargo, a Canadian cargo airline KF Defence Programs, a Canadian defense contractor Korea Foundation Air Belgium, an airline based in Belgium (IATA code KF) Blue1, a defunct airline based in Finland (IATA code KF) Kettle Foods, a snack foods manufacturer Kooperativa Förbundet, a cooperative Swedish retail chain KrisFlyer, the frequent flyer program of Singapore Airlines A member of the Mazda K engine family Kiwi Farms Games: Katamari Forever, a video game for the PlayStation 3 Killing Floor (2009 video game), a cooperative survival horror video game Science and technology: A member of the Mazda K engine family Kalman Filter, in mathematics Potassium fluoride, a chemical substance Klein Flange, a quick release vacuum flange Cryoscopic constant, Kf, related to freezing-point depression Karl Fischer titration Stability constants of complexes, abbreviated as Kf (constant of formation) Filtration coefficient. Sports Knattspyrnufélag Fjallabyggðar, an Icelandic sports team