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 Channel ...

, 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 rock band or pop band is a small musical ensemble that performs rock music, pop music, or a related genre. A four-piece band is the most common configuration in rock and pop music. In the early years, the configuration was typically two guita ...

'', 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 Ray-Ban is an American-Italian brand of luxury sunglasses and eyeglasses created in 1936 by Bausch & Lomb. The brand is known for its Wayfarer and Aviator lines of sunglasses. In 1999, Bausch & Lomb sold the brand to Italian eyewear conglomerate ...

, a sunglasses company *

Reckitt Benckiser Reckitt Benckiser Group plc, trading as Reckitt, is a British multinational consumer goods company headquartered in Slough, England. It is a producer of health, hygiene and nutrition products. The company was formed in March 1999 by the merg ...

, 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 participant ...

, 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 sa ...

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 proprie ...

Rebar Rebar (short for reinforcing bar), known when massed as reinforcing steel or reinforcement steel, is a steel bar used as a Tension (physics), tension device in reinforced concrete and reinforced masonry structures to strengthen and aid the concr ...

(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 Rubidium is the chemical element with the symbol Rb and atomic number 37. It is a very soft, whitish-grey solid in the alkali metal group, similar to potassium and caesium. Rubidium is the first alkali metal in the group to have a density higher ...

, 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 * Request Block, a task-related control block in OS/360 and successors.

Vehicles

Hyundai RB (buses) The Hyundai RB (hangul:현대 알비, 현대RB) is a series of rear engine coaches manufactured by the South Korean Hyundai Motor Company. Most models of the coach are distinguishable by a rear engine, at coach model is commonly referred to as ...

, a series of Korean buses *

SJ Rb Rb is an electric locomotive operated by Swedish State Railways ( sv, Statens Järnvägar, SJ). Six locomotives were built by ASEA, in three series designated Rb1, Rb2 or Rb3. History During the 1950s SJ saw the need for a new universal locomoti ...

, a Swedish locomotive * Nissan RB engine, a gasoline engine made by Nissan * Re-entry body, the US Air Force term for a re-entry vehicle * Regionalbahn, a type of train in Germany *

Réseau Breton The Réseau Breton (RB) is a , standard gauge, and former , metre gauge, railway in Finistère, France, with a few kilometres of line in Côtes d'Armor, Ille-et-Vilaine and Morbihan. The hub of the system was Carhaix. The metre gauge lines were ...

, a French railway network in Brittany

Sport

Running back A running back (RB) is a member of the offensive backfield in gridiron football. The primary roles of a running back are to receive American football plays#Offensive terminology, handoffs from the quarterback to Rush (American football)#Offen ...

, a position in North America football *

Right back In the sport of association football, a defender is an outfield position whose primary role is to stop attacks during the game and prevent the opposition from scoring. Centre-backs are usually positioned in pairs, with one full-back on either s ...

, a defensive position in association football *

RB Leipzig RasenBallsport Leipzig e.V. (), commonly known as RB Leipzig, and colloquially referred to as Red Bull Leipzig, is a German professional football club based in Leipzig, Saxony. The club was founded in 2009 by the initiative of the company Red Bu ...

, German football club

Other uses

* R. B. (nickname) * R. B. Winter State Park, a park in Pennsylvania *

Rancho Bernardo Rancho Bernardo is a master-planned community in the northern hills of the city of San Diego, California. Geography The topography of Rancho Bernardo consists of canyons and rolling hills that have large bedrock outcroppings. The major floral bio ...

, a community in San Diego, California, United States * Rowboat {{disambiguation