DFB may refer to:
Music
- Dem Franchize Boyz, an Atlanta hip hop group
- Dysfunctional Family BBQ, a New York festival
Sport
- DFB-Pokal, a football cup competition in Germany
Organisations
- Furka Steam Railway (), Switzerland
- German Football Association (), a sport governing body
- Dublin Fire Brigade, Ireland
Science and technology
- Decafluorobutane, a fluorocarbon gas
- Dfb, Köppen climate classification for a humid continental climate
- Distributed-feedback laser
Other uses
- Deerfield Beach, Florida, a city in the United States