DF or df may refer to:

Gaming

  • DeFRaG, a modification for the computer game Quake III Arena
  • DragonFable, a 2006 video game by Artix Entertainment
  • Dwarf Fortress, a 2006 sandbox-style computer game

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Places

  • Distrito Federal (Brazil), or the Federal District
  • Distrito Federal (Mexico), or the Federal District, now known as Mexico City

Politics

  • Danish People's Party (Dansk Folkeparti)
  • Democratic Front (Bosnia and Herzegovina) (Demokratska fronta)
  • Democratic Front (Montenegro) (Demokratski front)

Science and technology

  • df (Unix), a Unix command to report disk space usage by a filesystem
  • Dairy free, identifying products that contain no milk
  • Decapacitation factor, in biochemistry
  • Degrees of freedom, various measures in statistics, mathematics and physics
  • Density function, a mathematical function with a wide range of applications
  • Dielectric loss
  • Direction finding, a technique used to locate radio transmitters
  • Direction flag, a flag stored in the FLAGS register on all x86-compatible CPUs
  • Dissipation factor, a measure of loss-rate of energy of an oscillation mode in a dissipative system
  • Dongfeng (missile), a Chinese intercontinental ballistic missile
  • Dongfeng series of diesel locomotives
  • China Railways DF
  • China Railways DF4
  • China Railways DF8
  • Methylphosphonyl difluoride, a chemical weapons precursor
  • Daylight factor (DF), the ratio of the light level inside a structure to the light level outside the structure.
  • Deuterium fluoride, a form of hydrogen fluoride using deuterium atoms

Other uses

  • Defender (association football)
  • Delta Force, a component of the U.S. Army Joint Special Operations Command
  • Design Factory, a department of Aalto University
  • Duty Free, goods which are free from tax or duty
  • New Zealand DF class locomotive (1979)
  • Quantum Air (formerly AeBal), Spanish airline (IATA code DF)

See also

  • Dongfeng (disambiguation)
  • Distrito Federal (disambiguation)