DDF

• Digestive Disorders Foundation, a British medical research charity
• (N,N-dimethyl-amino)-benzenediazonium-fluoroborate, a photoaffinity probe that competes with acetylcholine for receptor binding
• Sulfoxone, an anti-leprosy drug sold under “DDF” brand

• Digital distribution frame, a device which terminates digital data streams, allowing arbitrary interconnections to be made
• 4,4'-Dinitro-3,3'-diazenofuroxan, an experimental high explosive
• Disk Data Format, a structure describing how data is formatted across disks in a RAID group

• Deciduous Dipterocarp Forest or Dry Deciduous Forest, also known as dry broadleaf forest, a type of dipterocarp forest found in tropical and subtropical latitudes, notably in India and mainland Southeast Asia.

• Demographic Development Fund, Georgian think tank
• Dicastery for the Doctrine of the Faith, a Rome-based Catholic institution
• Drop Dead Fred, a 1991 fantasy comedy film
• Dubai Duty Free, a duty-free retailer

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