| FDF | Family Development Foundation 
| Others |
| FDF | Fast Data Finder
| Others |
| FDF | Federal Department of Finance
| Others |
| FDF | Festival Dokumentarnega Filma
| Others |
| FDF | Fiat Dino Forum
| Others |
| FDF | Fiber Distribution Frame
| Others |
| FDF | File Data Format
| Others |
| FDF | File Description Framework
| Others |
| FDF | Financial Data Finder
| Others |
| FDF | Find Duplicate Files
| Others |
| FDF | Finished Dosage Form
| Others |
| FDF | Finished pharmaceutical Dosage Form
| Others |
| FDF | Finnish Defence Forces
| Others |
| FDF | First Digitize Force
| Others |
| FDF | Five Deadly Fists
| Others |
| FDF | Flash Drives for Freedom
| Others |
| FDF | Flight Data File
| Others |
| FDF | Flight Data Files
| Others |
| FDF | Flight Dynamics Facility
| Others |
| FDF | Flights Departing From
| Others |
| FDF | Float Dampening Factor
| Others |
| FDF | Folk Dance Festival
| Others |
| FDF | Food and Drink Federation
| Others |
| FDF | for Definition of FDF
| Others |
| FDF | Form Data Format
| Others |
| FDF | Forms Data Format
| Others |
| FDF | Forms document (Adobe Acrobat)
| Others |
| FDF | Formula Drift Final Fight
| Others |
| FDF | Fort de France, Martinique
| Others |
| FDF | Foundation Degree Forward
| Others |
| FDF | Fractal Deployment Framework
| Others |
| FDF | Francesco Di Feo
| Others |
| FDF | Francis Drilling Fluids
| Others |
| FDF | Francophone Democratic Federalists
| Others |
| FDF | Frequency Dictionary of French
| Others |
| FDF | Frequency Domain Filter
| Others |
| FDF | Friday Favorite
| Others |
| FDF | From Different Folders
| Others |
| FDF | fun dog Friday
| Others |
| FDF | Fundamentally Different Factor
| Others |
| FDF | Fundamentally Different Factors
| Others |