HF, Hf or hf can refer to:

Arts and entertainment

  • HammerFall, a Swedish power metal band
  • Hard-Fi, an English indie rock band
  • Star Trek: Hidden Frontier, a long-running Star Trek fan-fiction series
  • Hi-hat with foot, part of a drum kit

Business

  • Hlutafélag (hf.), a form of limited liability company in Iceland
  • Hapag-Lloyd Flug, a former German airline (IATA code) doing business as TUIfly
  • Air Côte d'Ivoire, an Ivorian airline (IATA code)

Education

  • Higher Preparatory Examination (HF) (Højere Forberedelseseksamen), a Danish examination programme
  • Heraldo Filipino, the student newspaper of De La Salle University-Dasmariñas, Cavite, Philippines
  • Homewood-Flossmoor High School, Flossmoor, Illinois

Organizations

  • Humanity First, an international charitable organisation, which focuses on immediate disaster response and long-term development
  • Health trust (Helseforetak), a Norwegian hospital enterprise
  • Heritage Front, a white supremacist and Canadian Nationalist group
  • Hudobný fond (Music Fund Slovakia), a presenter of the ZAI Awards

Science and technology

Biology and medicine

  • Heart failure
  • Holstein Friesian cattle, HF, a breed of cattle
  • Steve Biko Academic Hospital, a hospital in Pretoria, South Africa, formerly called H F Verwoerd Hospital
  • Hippocampal formation, region in the brain

Chemistry

  • Hafnium, symbol Hf, a chemical element
  • Hartree–Fock method, a calculation scheme in the field of computational chemistry
  • Hydrogen fluoride, HF, a diatomic compound which can dissolve in water to form hydrofluoric acid, a highly corrosive solution
  • Hydrofluoric acid, HF<sub>(aq)</sub>, a solution of hydrogen fluoride (HF) in water

Other uses in science and technology

  • Handsfree, equipment that can be used without the use of hands
  • Helicon Filter, photo editing software
  • Helicon Focus, a photo-merging program used to increase depth of field or make panoramas
  • High frequency, the ITU 3–30&nbsp;MHz radio frequency range (band)
  • Hilbert function of a graded algebra

Sport

  • Half-Forward, an Australian Rules football position
  • Heinz Field, a stadium in Pittsburgh, Pennsylvania and the home of the Pittsburgh Steelers

People

  • H. F. Verwoerd, a South African Prime Minister
  • Harrison Ford, American film actor

Other uses

  • Have Fun, in video game slang
  • High five, celebratory hand gesture
  • Hotfix, a software patch to temporarily fix a bug in a product

See also

  • High fidelity
  • HFS (disambiguation)