GDF

GDF may stand for:

• Gaz de France
• General Data Format for Biomedical Signals
• Geographic Data Files
• Geological disposal facility for nuclear waste
• Global Defence Force, a video game
• Global Development Finance, a World Bank database
• Grateful Dead Family
• Great Dun Fell, a radar station in Cumbria, England
• Growth and differentiation factor, a subfamily of proteins belonging to the transforming growth factor beta superfamily
• Guides de France
• Guyana Defence Force