BSF may refer to:

Organisations

  • Ballerup-Skovlunde Fodbold, a Danish football club
  • British Skin Foundation, a UK charity raising money for skin disease and skin cancer research
  • Bibliothèques Sans Frontières, an international non profit
  • Bible Study Fellowship, an international Christian organisation
  • United States – Israel Binational Science Foundation
  • Biosciences Federation, a UK life science organisation
  • Border Security Force, Indian federal border patrol agency
  • Brandy Station Foundation, an organization devoted to preserving a battle site in Virginia, United States
  • British Softball Federation, the National Governing Body of softball within the UK
  • Bund Schweizerischer Frauenvereine, Swiss national federation of women's organizations

Science

  • Basilar skull fracture, a head injury
  • Biosand filter, water filtration technique
  • Black Soldier Fly, a larva used in permaculture

Computing

  • Bean Scripting Framework, software to integrate the Java programming language with other scripting languages
  • Bit Scan Forward, an x86 instruction used to find the least significant bit set in a binary word
  • Bootstrapping Server Function part of GAA/GBA Generic Bootstrapping Architecture

Miscellaneous

  • Black Sea Fleet, the fleet of the Russian Navy in the Black Sea
  • Black Sea Forum for Partnership and Dialogue, regional forum first held in 2006
  • Boies Schiller Flexner LLP, an American law firm
  • Hard bolívar, abbreviated BsF or Bs.F, the currency of Venezuela from 2008 to 2018
  • Boysetsfire, an American post-hardcore rock band
  • Bradshaw Army Airfield, with IATA airport code BSF
  • British Standard Fine, an imperial-unit based screw-thread standard
  • Building Schools for the Future, a British Government initiative to rebuild schools, from 2004 to 2010
  • BSF (time service), Taiwan's time signal
  • Segelföreningen i Björneborg, Finnish yacht club