| Acronym | Definition |
|---|
| BF | Boyfriend |
| BF | Black Friday |
| BF | Body Fat (health statistic) |
| BF | Beginning of (radioactive) Fallout |
| BF | Best Friend |
| BF | Bahamas |
| BF | Burkina Faso (country in west Africa) |
| BF | Butterfly |
| BF | Blue Film |
| BF | Breastfeeding (infant health) |
| BF | Barefoot |
| BF | Board Foot |
| BF | Blue Fish (brand) |
| BF | Best Feature |
| BF | Bigfoot |
| BF | Benjamin Franklin |
| BF | Bring Forward |
| BF | Blood Flow |
| BF | But First (Hyper Logo command) |
| BF | Ballast Factor |
| BF | Basal Forebrain |
| BF | Babelfish |
| BF | Baby Face |
| BF | Booking Fee |
| BF | Brett Favre (football player) |
| BF | Beam Forming |
| BF | Batters Faced (baseball statistic) |
| BF | Balanced Flue (fireplaces) |
| BF | Blast Furnace |
| BF | Business Forum |
| BF | Battlefields (Utopia game server) |
| BF | Barrier-Free |
| BF | Backfill (class of concrete surface finish, USACE) |
| BF | Brought Forward |
| BF | Baseball Field |
| BF | Bonafide (notice of intent to manufacture or import) |
| BF | Blind Faith (book by Joe McGinniss) |
| BF | Bold Face |
| BF | Bryan Ferry (singer) |
| BF | Blind Faith (band) |
| BF | Breaker Failure (electrical engineering) |
| BF | Boba Fett (Star Wars character) |
| BF | Basse Fréquence (French: Low Frequency; radio frequency) |
| BF | Brain Freeze |
| BF | Bad Friend |
| BF | Bad Flag |
| BF | Backflush |
| BF | Bluefire |
| BF | Basic Function |
| BF | Behavioral Finance |
| BF | Battle Force |
| BF | Beat Frequency |
| BF | Boiler Feed |
| BF | Belgian Franc (unit of currency) |
| BF | Blood Furnace (gaming, World of Warcraft) |
| BF | Buenafuente (Spanish TV show) |
| BF | Battle Frontier (Pokemon) |
| BF | Butterworth Filter |
| BF | Both Faces |
| BF | Bloody Fool |
| BF | Blue Falcon (Dyno-Mutt) |
| BF | Battle Field 1942 (game) |
| BF | Bomber/Fighter |
| BF | Bitch Fit |
| BF | Back-Feed |
| BF | Bypass Filter |
| BF | Basic Frame (NEC) |
| BF | Brevet Federal |
| BF | Balance Forward |
| BF | Bum Fights (game) |
| BF | Benton Foundation |
| BF | Boundary Function |
| BF | Beam Fraction |
| BF | Bayerische Flugzeugwerke AG (German aircraft manufacturer) |
| BF | Bangface (London, England neo-rave club) |
| BF | Bongo Fury |
| BF | Bond Forfeiture |
| BF | Bravo Fleet (gaming) |
| BF | Balefire (gaming) |
| BF | Business Facilitator (Indian banking sector) |
| BF | Business Frame (statistics, New Zealand) |
| BF | Bridging Fault |
| BF | Balls Faced (game of Cricket) |
| BF | Blitzen Fits (Christmas) |
| BF | Bachelor of Finance |
| BF | Biliran Forum |
| BF | Body Flap |
| BF | Bridge Function |
| BF | Mark Air (airline code) |
| BF | Breastfeeding/Breastfed |
| BF | Burning Fusion (WoW gaming Fusion Server) |
| BF | Bornhuetter-Ferguson (insurance claims method) |
| BF | Bus Fraction (Intel) |
| BF | Bryan Fury (Tekken 3 character) |
| BF | Battery Feed |
| BF | Boundary Facility |
| BF | Breaker Filter (Nortel) |
| BF | Battleforums |
| BF | BlizzForums |
| BF | Binary Feedback |
| BF | Beyond Fatal (band) |
| BF | Bovine Fibrinogen |
| BF | Blade Fold |
| BF | Banco Filipino Savings & Mortgage Bank (Philippines) |
| BF | Blue Faction (gaming clan) |
| BF | Bond Finger (semiconductor substrate type) |
| BF | Branching Filter |
| BF | Bombay First |
| BF | Bachelor of Forestry |
| BF | Bellerive Foundation (Kenya) |
| BF | Battlefield Function |
| BF | Bashkimi Për Fitoren (Union for Victory, Albania) |
| BF | Base Funded |
| BF | Bellows Factor (photography) |
| BF | Benign Fill (cryptography) |
| BF | Biologijas Fakultate (Faculty of Biology) |
| BF | Bjørnefitte (Norwegian Military Winterhat) |
| BF | Burgundy Fawn (rabbit breed) |
| BF | Bladen Force (website ring) |
| BF | Buttock Firmer (strength-building exercise) |
| BF | Buffalo's Finest (graffiti crew) |
| BF | Berendina Foundation (microfinance) |