BDF or Bdf may refer to:
Businesses and organisations
Ballroom Dancers' Federation, a British organization for competitive ballroom dancers Banca Dacia Felix (Dacia Felix Bank), a defunct Romanian bank Beiersdorf AG, a multinational corporation based in Hamburg, Germany Banque de France (Bank of France), the French central bank
Events Bates Dance Festival, a yearly dance festival held at Bates College, Maine, US Berlin Demography Forum, an annual conference
Mathematics and units Backward differentiation formula, a numerical method for solving ordinary differential equations Board foot, unit of measure for volume of lumber
People Bassirou Diomaye Faye (born 1980), president of Senegal
Places Bedfordshire, a historic county in England, Chapman code Bois-des-Filion, Quebec, a town in Quebec, Canada
Technology Building Distribution Frame, a type of distribution frame in telecommunications PCI BDF (bus/device/function), a range of configurable addresses in PCI configuration space Glyph Bitmap Distribution Format, a file format for storing bitmap fonts Bromo-DragonFLY, a psychedelic drug
Military Bangladesh Forces, the combined forces of Bangladesh during its war of independence in 1971 Bahrain Defense Force, the military of Bahrain Barbados Defence Force, the military of Barbados Belize Defence Force, the military of Belize Botswana Defence Force, the military of Botswana