GBR or GbR may refer to: Organisations GbR (), a form of business entity in Germany General Botha Regiment, an infantry regiment of the South African Army Great Britain at the Olympics (Team GB), by IOC country code Great British Railways, a planned British railway body Places Great Barrier Reef, off the coast of Queensland, Australia Great Bear Rainforest, British Columbia, Canada United Kingdom, by ISO 3166-1 code Walter J. Koladza Airport (or Great Barrington Airport), United States (by IATA code) Science and technology GBR (subpixels) (Green, Blue, Red), an RGB display pixel layout GBR compound, nomenclature code for a series of molecular drugs that are congeners with benztropine Gerber format, a file format with extension gbr Guaranteed Bit Rate, a characteristic of LTE network traffic flows Guided bone regeneration, a medical procedure See also BGR (disambiguation) RGB (disambiguation)