FSF

• Familial Shar Pei fever
• Faroe Islands Football Association
• Federación de Sindicatos Ferroviarios
• Federal Security Force (Pakistan)
• Federação Sergipana de Futebol
• Fibrin-stabilizing factor
• Financial Stability Forum
• Flexible Support Fund
• Flight Safety Foundation
• Folsom Street Fair
• Football Supporters' Federation
• Fourth suit forcing
• Free Software Foundation
• Free speech fights
• Fuerte San Francisco
• Fugitive Strike Force
• Full state feedback
• Further Seems Forever
• Progressive Party (Iceland)
• Sahrawi Football Federation
• Science fantasy
• Senegalese Football Federation
• Speculative fiction
• Swedish Society of Cinematographers
• São Toméan Football Federation
• The Magazine of Fantasy & Science Fiction