DBF may refer to:
- dBASE filename extension
- 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.