DBF may refer to:
- .dbf – file format introduced by dBASE database system, since adopted by other applications as well
- Detection By Fire
- Divorced Black Female in personal ads
- dBf – Decibel as referring to 1 femtowatt
- dBF – Decibel as in "dB from Full"
- Drude-Born-Federov form of constitutive equations
- Distributed Bellman-Ford a Distance-vector routing protocol
- Danmarks Badminton Forbund (Denmark's Badminton Union)
- Diesel Boats Forever (Diesel Boats Forever)
- Design/Build/Fly aircraft design competition
- Oracle tablespace filename extension
- Distributed feedback laser – a type of a laser
- Drunk Bitch Friday – formerly a weekly bit on the Lex and Terry morning radio show.