FLR

FLR may refer to:
 * FLR, old IATA code for Fall River Municipal Airport, a defunct airport in Massachusetts, United States
 * FLR, IATA code for Florence Airport, in Italy
 * FLR, NYSE ticker symbol for Fluor Corporation, an American engineering and construction firm
 * flr, ISO 639-3 code for the Fuliiru language, spoken in Congo
 * Family Law Reports, a law report series for family law cases in the United Kingdom
 * Family Life Radio, an American radio network
 * Federal Law Reports, a series of Australian law reports
 * Female-led relationship, a type of interpersonal relationship
 * Fife Lake Railway, in Canada
 * Forest landscape restoration, forest restoration intended to restore landscape appearance as well as ecology
 * Fuzzy Logic Recordings, a Canadian record label
 * Fédération Luxembourgeoise de rugby (Luxembourg Rugby Federation), Luxembourgeoise sports organization