RB

RB or Rb may stand for:

People

 * R. B. (nickname)
 * Rebecca Black, an American pop singer
 * Richard Blackwood, a British rapper

Places

 * R. B. Winter State Park, a park in Pennsylvania
 * Rancho Bernardo, a community in San Diego, California, United States

Arts and entertainment

 * Rhythm and blues, 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, a Japanese television series

Businesses

 * Rankin/Bass, an American production company, known for its seasonal television specials
 * Ray-Ban, a sunglasses company
 * Reckitt Benckiser, a company in the United Kingdom
 * Syrian Arab Airlines (IATA airline code )

Government and politics

 * Radio Bremen, 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
 * Rupiah Banda, President of Zambia

Science and technology

 * .rb, the file extension for documents created in Ruby or in REAL Basic
 * Rebar (short for reinforcing bar), used in reinforced concrete structures
 * Retinoblastoma, a childhood cancer of the eyes caused by a mutation in the retinoblastoma protein
 * Retinoblastoma protein, a tumor suppressor protein
 * Rubidium, symbol Rb, a chemical element
 * Reflected binary code, Gray code
 * Request Block, a task-related control block in OS/360 and successors.

Vehicles and transportation

 * Hyundai RB (buses), a series of Korean buses
 * SJ Rb, a Swedish locomotive
 * Nissan RB engine, a gasoline engine made by Nissan
 * Rail Baltica, railway network across the Baltic states
 * 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 Formula One Team, Formula One racing team
 * RB Leipzig, German football club

Other uses

 * Rowboat