PFR may refer to: Science and technology Plug flow reactor model, a reactor simulation model Prototype Fast Reactor, a nuclear reactor at Dounreay PFR, Phosphate Flame Retardant, a type of Flame Retardant pFR, a form of the light-sensing pigment phytochrome found in plants pFR, polymeric Flame Retardant, a type of Flame Retardant Other PFR (band) (Pray for Rain), a Christian music group Partito Fascista Repubblicano, a former political party in Italy Pontefract Baghill railway station, England; National Rail station code PFR PFFR, an alternative rock group Portable Font Resource Pork fried rice, a Chinese dish Pro-Football-Reference.com, a website cataloging statistics for the National Football League and other professional American football leagues Persons and Family Relations, one of the subjects covered in Civil Law on the Philippine Bar Examinations Power finesse ratio, a statistic for baseball pitchers