BMF may refer to:
- BMF, IATA code for Bakouma Airport in the Central African Republic
- BMF (gene), a gene that encodes the human protein Bcl-2-modifying factor
- BMF (record label), a record label based in Ireland
- Be Military Fit, a UK fitness company (previously called British Military Fitness)
- Bird–Meertens formalism, a calculus for deriving computer programs from specifications by a process of equational reasoning
- Black Mafia Family, a former drug trafficking organization originally based in Detroit, Michigan
- BMF (TV series), a 2021 television series about the Black Mafia Family
- Boston MedFlight, a non-profit medical transport organization in eastern Massachusetts
- Budapesti Műszaki Főiskola (Budapest Technical College), former name of Óbuda University
- British Marine Federation, a UK trade association
- British Motorcyclists Federation
- British Museum Friends, a registered charitable organisation in the UK
- British Muslim Forum, a Muslim organization representing 500 Mosques across the UK
- Bundesministerium der Finanzen (Federal Ministry of Finance (Germany)), the German Federal Ministry of Finance
- Bundesministerium für Finanzen (The Austrian Ministry of Finance)
- "B.M.F. (Blowin' Money Fast)", a song from Rick Ross's fourth studio album Teflon Don
- Brain Mapping Foundation
- BMF, an abbreviation of bad motherfucker
- The BMF (baddest motherfucker) belt, a symbolic title handed out by the UFC