PFR

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
 * Polynomial Freiman-Ruzsa, a conjecture in Mathematics

Other

 * Partito Fascista Repubblicano, a former political party in Italy
 * Persons and Family Relations, one of the subjects covered in Civil Law on the Philippine Bar Examinations
 * PFFR, an alternative rock group
 * PFR (band) (Pray for Rain), a Christian music group
 * PFR, product feature request
 * Pontefract Baghill railway station, England; National Rail station code PFR
 * Pork fried rice, a Chinese dish
 * Portable Font Resource
 * Power finesse ratio, a statistic for baseball pitchers
 * Prism fusion range, a clinical eye test to assess motor fusion
 * Pro-Football-Reference.com, a website cataloging statistics for the National Football League and other professional American football leagues
 * Promoted from Reserves (badminton)