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SF or Sf may refer to:

Locations

  • San Francisco, California, United States
  • Sioux Falls, South Dakota, United States
  • Sidi Fredj, Algeria
  • South Florida, an urban region in the United States
  • Suomi Finland, former vehicular country code for Finland

Arts and entertainment

Genres

  • Speculative fiction (usually sf)
  • Science fiction or sci-fi (usually SF)

Film and television

  • Svensk Filmindustri, the Swedish film industry
  • SF Film Finland, a Finnish film distributor
  • SF Channel (Australia)
  • Schweizer Fernsehen, a German-language television network in Switzerland
  • Suomen Filmiteollisuus, a Finnish film production company

Music

  • Sforzando (musical direction) or sf, a musical accent
  • Subito forte, a musical notation for dynamics (music)
  • Switchfoot, a band
  • Sasha Fierce, on-stage alter ego of American entertainer Beyoncé, and namesake of her album I Am... Sasha Fierce

Other media

  • Saikoro Fiction, a Japanese role-playing game system
  • Street Fighter, a series of fighting video games by Capcom

Businesses and organizations

Politics

  • Salzburg Forum, European security intergovernmental organization
  • Samoa First, a political party in Samoa
  • Sinn Féin, an Irish political party
  • Socialistisk Folkeparti, a political party in Denmark
  • Sosialistisk Folkeparti, a splinter group of the Norwegian Labour Party

Other businesses and organizations

  • Statsforetak, a type of Norwegian state enterprise
  • SF Express, a Chinese multinational delivery services and logistics company
  • SF Airlines, a Chinese cargo airline owned by SF Express
  • SF Group, a cinema and entertainment venue operator in Thailand
  • Salesforce, an American cloud computing company specializing in customer resource management
  • Six Flags, an American amusement park company
  • Six Flags (1961–2024), a defunct amusement park company that merged with Cedar Fair in 2024
  • SourceForge, a web-based service that offers a source code repository, download mirrors, bug tracking and other features
  • Space forces, military service branches for space operations
  • Special forces, military units trained to perform unconventional missions
  • State Farm, an American insurance company
  • Tassili Airlines (IATA designator SF)
  • A common shorthand for "Standard Form", a designation used by the United States Office of Personnel Management for forms used across various government agencies

Science, math, and engineering

  • DOH-5-hemiFLY (semi-fly; SF), a psychedelic drug
  • Significant figures, numeric digits contributing meaningfully to measurement resolution
  • Safety factor, the capacity of a system beyond expected or actual loads
  • Small find, an artifact independent from other artifacts
  • Spontaneous fission, a form of radioactive decay found in very heavy elements
  • Square foot, unit of area
  • Stacking fault, a dislocation in a crystal
  • S.F., an acronym name for stick figures

Sports

  • A common abbreviation for the U.S. city of San Francisco, California's major professional sports teams:
  • San Francisco 49ers, the city's National Football League team
  • San Francisco Giants, the city's Major League Baseball team
  • Small forward, a position in basketball
  • Stade Français, a French rugby union team based in Paris
  • Superleague Formula, a former motorsport racing series
  • Super Formula Championship, a Japanese motorsport racing series
  • Sacrifice fly, a play in baseball
  • Semi-finals, a round in elimination tournaments
  • Scuderia Ferrari, an Italian Formula One team

Other uses

  • San Francisco (sans-serif typeface), Apple's sans-serif and corporate typeface
  • United States Air Force Security Forces, the ground combat, force protection and military police force of the U.S. Air Force
  • United States Army Special Forces, special operations organization of the U.S. Army
  • Selle Français, a French breed of horse
  • A former hull classification symbol for a fleet submarine in the United States Navy
  • Franklin Avenue Shuttle in New York City, sometimes signed as S<sup>F</sup> in documents

See also

  • Garland SF-01 and Garland SF-03, fictional racing cars in Future GPX Cyber Formula