FSF

FSF may refer to:

Organizations

Free Software Foundation, an American non-profit organization with a mission to promote computer user freedom
Federal Security Force (Pakistan)
Federación de Sindicatos Ferroviarios, a defunct Argentine trade union
Financial Stability Forum, a defunct international organization of financial regulators
Finlands svenska författareförening, the Society of Swedish Authors in Finland
Flight Safety Foundation, an international independent, non-profit organization for research, education, and communications in the field of civil aviation flight safety
Föreningen Sveriges Filmfotografer, the Swedish Society of Cinematographers
Progressive Party, an Icelandic political party (in Icelandic: Framsóknarflokkurinn)
Freiwillige Selbstkontrolle Fernsehen, German television rating content board.

Folsom Street Fair, a street fair in San Francisco, California, United States
Further Seems Forever, a rock band
Fugitive Strike Force, a 2006 television series
The Magazine of Fantasy & Science Fiction, also abbreviated F&SF
Speculative fiction (genre) containing the subgenre of fantasy/science fiction (F/SF)
Science fantasy (genre), a mixed genre of fantasy and science fiction elements
Festival of Slovenian Film, an annual film festival in Portorož, Slovenia

Faroe Islands Football Association (Faroese: Script error: No such module "Lang".)
Federação Sergipana de Futebol, the Football Federation of Sergipe, Brazil
Football Supporters' Federation
Fuerte San Francisco, a Salvadoran football club
Sahrawi Football Federation (Spanish: Script error: No such module "Lang".)
São Toméan Football Federation (Portuguese: Script error: No such module "Lang".)
Senegalese Football Federation (French: Script error: No such module "Lang".)