BFR
- BFG (disambiguation)
- Bala and Festiniog Railway
- Bazigar language
- Bekal Fort railway station
- Berkeley Fiction Review
- Biennial flight review
- Big Falcon Rocket
- Blackfriars station
- Blackhawk Farms Raceway
- Blood flow restriction training
- Bloody Fist Records
- Body fat redistribution syndrome
- Boombox
- Botafogo de Futebol e Regatas
- Brampton Fire and Rescue
- Brominated flame retardant
- Erotic lactation
- Federal Institute for Risk Assessment
- Magnum Research BFR
- Military slang
- SpaceX
- Vascular occlusion
- Vascular occlusion training
- Virgil I. Grissom Municipal Airport