BRR

BRR may refer to:


 * Balanced repeated replication, a statistical technique for estimating sampling variability
 * Barra Airport (Scotland) (IATA airport code)
 * Barrhead railway station, a Scottish railway station
 * Binary Revolution Radio, a hacker internet radio show
 * Bit-rate reduction, another term for data compression
 * Bit Rate Reduction, a name given to an audio compression scheme used in the SNES
 * Blenheim Riverside Railway, a narrow gauge railway in Blenheim, New Zealand
 * BMW Rolls-Royce AeroEngines GmbH, in short form BMW Rolls-Royce, a former joint venture company of BMW AG and Rolls-Royce plc
 * Book Rights Registry, disburses revenue from Google Book Search
 * Brazilian cruzeiro real, the short-lived currency between August 1993 and June 1994, that had ISO 4217 code BRR
 * BRR dances
 * Business Readiness Rating
 * Badan Rehabilitasi dan Rekonstruksi or BRR NAD-Nias, an Agency for Rehabilitation and Reconstruction of Aceh and Nias
 * Black Rose Rollers, a roller derby league from Hanover, Pennsylvania