RBG is an abbreviation for Ruth Bader Ginsburg (1933–2020), who was an Associate Justice of the Supreme Court of the United States.

RBG may also refer to:

Transport

ICAO designator for Air Arabia Egypt, an Egyptian airline IATA identifier code for Roseburg Regional Airport, Oregon, United States Regental Bahnbetriebs-GmbH, German railway company

Technology

Random blood glucose, a test for blood sugar Random bit generator or random number generator, a term used in computer science Rubber band gun, a toy gun used to fire one or more rubber bands

Other

RBG (film), a 2018 American documentary film about Supreme Court Justice Ruth Bader Ginsburg RBG Resources, a British public-limited firm based in London RBG: Revolutionary but Gangsta, a 2004 hip-hop album by duo Dead Prez Red Barn Gallery, a photography gallery in Belfast, Northern Ireland Red, Black and Green, the traditional African colors created by the UNIA Rhema Media, a New Zealand Christian media organization previously known as Rhema Broadcasting Group Royal Borough of Greenwich, a local authority district in southeast London, United Kingdom Royal Botanical Gardens (disambiguation), several Royal Botanic Gardens or Royal Botanical Gardens

See also RGB (disambiguation)