IFF

IFF, Iff or iff may refer to:

Technology/Science:

• Identification Friend or Foe, an electronic radio-based identification system using transponders
• Interchange File Format, a computer file format introduced in 1985 and later extended into many others
• IFF (software), a series of compositing and visual effects applications made by Autodesk Media and Entertainment
• if and only if, a mathematical and logical connector indicating that either both statements are true or both are false

Other:

• IFF (lending institution), formerly the Illinois Facilities Fund
• In Flanders Fields Museum, a World War I museum located in Ypres, Belgium
• Institute For Figuring, an organization that promotes the public understanding of the poetic and aesthetic dimensions of science, mathematics and the technical arts
• International Fashion Federation
• International Feldenkrais Federation
• International Floorball Federation, the global governing body for the sport of floorball
• International Flavors and Fragrances, a company producing flavors and fragrances
• International Freedom Foundation
• International Film Festival
• International Finance Facility
• Introduction to Fighter Fundamentals, a U.S. Air Force formal training course for new fighter aircrew
• International Freedom Fighters, an American Army gaming clan
• International Freight Forwarder, an individual or company that books or otherwise arranges space for shipments between countries via common carriers
• Irish Fencing Federation, the governing body for fencing in Ireland
• Islamic Republic of Iran Football Federation, the governing body for football in Iran

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