FFR

FFR may refer to:

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: Fédération Française de Rugby)
 * French Rugby League Federation (French: 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 an N95
 * Firearm–related Fatality Rate, measure in the epidemiology of firearm–related fatalities
 * Five Finger Rapids, Yukon River, Yukon, 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 journalistswho work on military and humanitarian frontlines
 * Final Form Ride Series, a toy line of Kamen Rider Decade action figures