FDD

FDD may refer to:

  • Floppy disk drive
  • Foundation for Defense of Democracies, a policy institute based in Washington, DC.
  • Feature Driven Development, a project management approach
  • National Council for the Defense of Democracy-Forces for the Defense of Democracy, a rebel group in Burundi
  • Frequency-division duplexing, a telecommunications duplex indexing method
  • Franchise Disclosure Document (2008) UFDD/UFOC Uniform Franchise Offering Circular
  • Former District Deputy when used after the name of a member of the Knights of Columbus
  • Focus-to-detector distance, a distance between the focus of an x-ray tube and detector in dosimetry
  • Frequency domain decomposition, a system identification technique
  • Francoise Danielle Decatrel