{{wiktionary}} '''FFR''' may refer to: {{TOC right}} ==Medicine== * Fellowship of the Faculty of Radiology of the Royal College of Surgeons in Ireland * Fractional flow reserve, a technique used in coronary catheterization * Frequency following response
==Military== * Falster Foot Regiment, a Royal Danish Army infantry regiment * Frontier Force Regiment, of the Pakistani Army * Fitted For Radio, British Army designators for vehicles equipped to carry radio equipment
== Music == * Fast Food Rockers, a British pop group * Fit for Rivals, an American band * ''For Future Reference'', a 1981 album by the British synthpop band Dramatis * Friendly Fire Recordings, an American record label
== Sports == * French Rugby Federation (French: ''{{lang|fr|Fédération Française de Rugby}}''), governs rugby union in France * French Rugby League Federation (French: ''{{lang|fr|Fédération Française de Rugby à XIII}}'') * Russian Fencing Federation * FC Fazisi Racha, a Georgian association football club
==Transportation== * Factory Five Racing, an American automobile kit company * Franconian Forest Railway, in Bavaria, Germany * Fischer Air, a defunct Czech airline
==Other== * Federal funds rate, in the United States * Filtering face respirator, a particulate-filtering respirator worn on the face, such as an N95 * Five Finger Rapids, Yukon River, Canada * Flathead Forest Reserve, Montana * Franciscan Friars of the Renewal, a religious institute in the Latin Church of the Catholic Church * French First Republic * Frontline Freelance Register, association of freelance journalists who work on military and humanitarian frontlines
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