BFD may refer to:

Agencies Bakersfield Fire Department, Bakersfield, California Boston Fire Department, Boston, Massachusetts Brooklyn Fire Department (former), Brooklyn, New York Buffalo Fire Department, Buffalo, New York

Computing Bidirectional Forwarding Detection, a network protocol used to detect faults between devices Binary File Descriptor library, the GNU Project's main mechanism for the portable manipulation of object files in a variety of formats Binary Format Description language, an extension of XSIL A virtual music instrument meant to simulate a drumset, released by FXpansion

Media Benelux Film Distributors, a joint venture of various independent film distributors BFD, an annual alternative music festival hosted by the radio station Live 105

Transportation Bakersfield (Amtrak station), California (Amtrak station code) Beaconsfield railway station, Melbourne Bradford Regional Airport, Bradford, Pennsylvania (IATA airport code) Brentford railway station, London, England (National Rail station code)

Other Back focal distance or back focal length, in optics Bafut language (ISO 639 alpha-3 code: bfd) BFD Energy Challenger, a professional tennis tournament in Rome, Italy Boiler feedwater pump, a type of pump used to pump feedwater into a steam boiler Bounded factorization domain, a particular kind of atomic domain Budgerigar fledgling disease, a virus, frequently fatal to caged birds Bund Freier Demokraten, the German acronym for Association of Free Democrats Bundesfreiwilligendienst or Federal volunteers service, Germany Conker's Bad Fur Day, a 2001 video game