DFD may refer to:
- Dancing Ferret Discs, a record label
- Dartford railway station, Kent, England (National Rail code)
- Data flow diagram
- Demokratischer Frauenbund Deutschlands DDR (Democratic Women's League of Germany in the GDR)
- Dallas Fire Department
- Denver Fire Department
- Detroit Financial District
- Detroit Fire Department
- Direct Fusion Drive, a conceptual nuclear-fusion rocket engine
- Dietrich Fischer-Dieskau, a German baritone known primarily for his vast recordings of Lieder
- Document Freedom Day, promoting Open Standards
- Dog Fashion Disco, an American metal band
- Album by Dumbfoundead
- Dyfed, preserved county in Wales, Chapman code
- Köppen climate classification#Dfd Subarctic or boreal climates with severe winters