IFF, Iff or iff may refer to:


  • 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 (Inferno, Flame and Flint) 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


  • Iff card, a smart card used on bus services in Cardiff, Wales


  • Institute For Figuring, an organization that promotes the public understanding of the poetic and aesthetic dimensions of science, mathematics and the technical arts
  • International Fencing Federation, the English name of the international governing body for fencing, the Fédération Internationale d'Escrime
  • 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
  • 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
  • Fakultät für Interdisziplinäre Forschung und Fortbildung (IFF), Interdisciplinary Faculty of the Austrian University of Klagenfurt


  • Identification Friendly Forces, a patch worn by soldiers, sometimes shown/not shown to I.D. soldiers in combat when using nightscopes.

Other articles related to "iff":

Luftwaffe Radio Equipment (Funkgerät) Of World War II - IFF
... FuG 25a Erstling This was an IFF set designed to respond to Freya, Würzburg and Gemse ground control radar through the transmission of identifying pulses ...
Connacht–Ulster (European Parliament Constituency) - MEPs
... (MEPs) for Connacht–Ulster 1979–2009 Key to parties FF = Fianna Fáil FG = Fine Gael IFF = Independent Fianna Fáil Ind = Independent Parl ... Member (Party) Member (Party) Member (Party) 1st 1979 Neil Blaney (IFF) Seán Flanagan (FF) Joe McCartin (FG) 2nd 1984 Ray MacSharry (FF) 1987 Mark Killilea (FF) 3rd 1989 Neil Blaney (IFF) 4th ...
Donegal North–East (Dáil Éireann Constituency) - TDs - TDs Since 1981
... Key to parties FF = Fianna Fáil FG = Fine Gael IFF = Independent Fianna Fáil SF = Sinn Féin Dáil Election Deputy (Party) Deputy (Party) Deputy (Party) 22nd 1981 Paddy Harte (FG) Neil Blaney (IFF) Hugh ...
Simon Iff - Publication History
... The Simon Iff stories were written during a visit to New Orleans in December 1916, primarily as a means of alleviating Crowley's financial hardships ... which Crowley penned would be labelled The Scrutinies of Simon Iff ... would later write twelve more stories under the title Simon Iff in America, six stories as Simon Iff Abroad, and two final stories as Simon Iff Psychoanalyst ...