BF

BF may refer to:

People

 * Best friend, in internet slang
 * Boyfriend, a male romantic or sexual partner
 * Bayani Fernando (born 1946), Filipino politician

Places

 * BF Homes Parañaque, a subdivision in the Philippines
 * Bahamas (LOC MARC, obsolete NATO and FIPS country code BF)
 * Baitul Futuh, a mosque in London
 * Beaver Falls, Pennsylvania, a city in western Pennsylvania
 * Bonners Ferry, Idaho, a town in Idaho, United States
 * Burkina Faso (ISO 3166-1 alpha-2 country code BF)
 * .bf, the ccTLD for Burkina Faso

Businesses and organizations

 * B&F System, Inc., a wholesale company
 * Bibliotekarforbundet, the Danish Union of Librarians
 * Bluebird Cargo (IATA airline designator BF)
 * Border Force, a law-enforcement structure in the United Kingdom.
 * British Fascists, a fascist organisation from the 1920s

Science and technology

 * BF (protein), an initialism for B factor, a triggering protein of the alternative pathway of complement activation
 * Bellman–Ford algorithm, a graph and tree search algorithm
 * Blast furnace, a type of metallurgical furnace
 * Board foot, a unit of measure of lumber
 * Big Falcon Rocket, precursor of SpaceX Starship
 * Boron monofluoride (BF), a chemical compound
 * Brainfuck, a programming language

Other uses

 * Batters faced, a baseball statistic
 * BattleForge, a real-time strategy game produced by Electronic Arts
 * Battlefront, a contested armed frontier between opposing forces
 * Bigfoot, a mythological ape-like creature
 * Bongo Frontier, a pickup truck built by Kia Motors
 * Breastfeeding
 * Blue film, or Pornographic film