Rb or RB may stand for:

Arts and entertainment

Rebecca Black Rebecca Renee Black (born June 21, 1997) is an American singer and YouTuber. She gained extensive media coverage when the music video for her 2011 single "Friday" went viral on YouTube and other social media sites. "Friday" was derided by many ...

, an American pop singer *

Richard Blackwood Richard Clifford Blackwood (born 15 May 1972) is a British actor, presenter and rapper. Between 2015 and 2018, he played Vincent Hubbard in the BBC soap opera '' EastEnders''. In 2020, he began portraying the role of Felix Westwood in the Chan ...

, a British rapper *

Rhythm and blues Rhythm and blues, frequently abbreviated as R&B or R'n'B, is a genre of popular music that originated in African-American communities in the 1940s. The term was originally used by record companies to describe recordings marketed predominantly ...

, a music genre combining blues, gospel and jazz influences * '' Rock Band'', a music video game series * ''Rock Band'' (video game), the game of the same name *''

Ultraman R/B is a Japanese tokusatsu superhero television series produced by Tsuburaya Productions. It is the 30th entry to the ''Ultra Series'' overall, the sixth entry to the "New Generation Heroes" lineup and the last entry to the series released in the He ...

'', a Japanese television series

Businesses

Rankin/Bass Rankin/Bass Animated Entertainment (founded and formerly known as Videocraft International, Ltd. and Rankin/Bass Productions, Inc.) was an American production company located in New York City, and known for its seasonal television specials, usual ...

, an American production company, known for its seasonal television specials * Ray-Ban, a sunglasses company *

Reckitt Benckiser Reckitt Benckiser Group plc, trade name, trading as Reckitt, is a United Kingdom, British multinational corporation, multinational fast moving consumer goods, consumer goods company headquartered in Slough, England. It is a producer of health, ...

, a company in the United Kingdom *

Syrian Arab Airlines Syrian Airlines ( ar, السورية للطيران), operating as SyrianAir ( ar, السورية), is the flag carrier airline of Syria. It operates scheduled international services to several destinations in Asia, Europe and North Africa, thoug ...

(IATA airline code RB)

Government and politics

Radio Bremen Radio Bremen (RB), Germany's smallest public radio and television broadcaster, is the legally mandated broadcaster for the city-state Free Hanseatic City of Bremen (which includes Bremerhaven). With its headquarters sited in Bremen, Radio Brem ...

, a public broadcaster for the German state of Bremen * ''Parti de la Renaissance du Bénin'' or Benin Rebirth Party, a political party in Benin * República Bolivariana, Spanish-language phrase for the type of government in

Venezuela Venezuela (; ), officially the Bolivarian Republic of Venezuela ( es, link=no, República Bolivariana de Venezuela), is a country on the northern coast of South America, consisting of a continental landmass and many islands and islets in th ...

Rupiah Banda Rupiah Bwezani Banda (19 February 1937 – 11 March 2022) was a Zambian politician who served as the fourth president of Zambia from 2008 to 2011, taking over from Levy Mwanawasa, who died as the sitting president. Banda was an active participan ...

, President of Zambia

Science and technology

* .rb, the file extension for documents created in

Ruby A ruby is a pinkish red to blood-red colored gemstone, a variety of the mineral corundum ( aluminium oxide). Ruby is one of the most popular traditional jewelry gems and is very durable. Other varieties of gem-quality corundum are called ...

or in

REAL Basic The Xojo programming environment and programming language is developed and commercially marketed by Xojo, Inc. of Austin, Texas for software development targeting macOS, Microsoft Windows, Linux, iOS, the Web and Raspberry Pi. Xojo uses a propri ...

* Rebar (short for reinforcing bar), used in reinforced concrete structures *

Retinoblastoma Retinoblastoma (Rb) is a rare form of cancer that rapidly develops from the immature cells of a retina, the light-detecting tissue of the eye. It is the most common primary malignant intraocular cancer in children, and it is almost exclusively fo ...

, a childhood cancer of the eyes caused by a mutation in the retinoblastoma protein *

Retinoblastoma protein The retinoblastoma protein (protein name abbreviated pRb; gene name abbreviated ''Rb'', ''RB'' or ''RB1'') is a proto-oncogenic tumor suppressor protein that is dysfunctional in several major cancers. One function of pRb is to prevent excessive ...

, a tumor suppressor protein * Rubidium, symbol Rb, a chemical element *

Reflected binary The reflected binary code (RBC), also known as reflected binary (RB) or Gray code after Frank Gray, is an ordering of the binary numeral system such that two successive values differ in only one bit (binary digit). For example, the representati ...

code, Gray code * Task Control Block#Request Blocks, Request Block, a task-related control block in OS/360 and successors.

Vehicles

* Hyundai RB (buses), a series of Korean buses * SJ Rb, a Swedish locomotive * Nissan RB engine, a gasoline engine made by Nissan * Atmospheric entry, Re-entry body, the US Air Force term for a re-entry vehicle * Regionalbahn, a type of train in Germany * Réseau Breton, a French railway network in Brittany

Sport

* Running back, a position in North America football * Right back, a defensive position in association football * RB Leipzig, German football club

Other uses

* R. B. (nickname) * R. B. Winter State Park, a park in Pennsylvania * Rancho Bernardo, a community in San Diego, California, United States * Rowboat {{disambiguation