BRG may refer to:
- Berkeley Research Group, LLC, a global expert services and consulting firm
- Borough Green & Wrotham railway station in Kent, England
- British racing green, a dark green colour traditionally used on early UK racing cars
- Brownsville and Rio Grande International Railroad, Texas
- Mareeba Airfield, an airfield located south of Mareeba, Queensland, Australia by IATA code
- the postal code of Birgu, Malta
- BRG Sports, an American sports equipment manufacturer
- Fiat BRG, a 1930s bomber of the Italian air force
- Baure language (ISO code: brg), a near extinct language of Bolivia