BLR may refer to: Base Lending Rate, in banking Bad Lip Reading, a YouTube comedy channel Bala Lake Railway, in North Wales Belarus, whose ISO 3166-1 alpha-3 code is BLR BLR, IATA code for Kempegowda International Airport in Bangalore, India Former IATA code for HAL Airport, the previous primary airport of Bangalore Beta-lactam Ring Records, an independent record label The Biggest Little Railway in the World, a 2017 temporary model railway in the Scottish Highlands Blacklands Railroad, based in Texas blr, ISO 639-3 code for the Blang language of Burma and China Breech-loading rifle Browning BLR, a hunting rifle Blacklight: Retribution, a first-person shooter game See also BLRC (disambiguation) Burkitt lymphoma receptor 1 (BLR1), also known as CXCR5