RB
Look up Rb in Wiktionary, the free dictionary.
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
 - Red Bull, an Austrian energy drink brand
 - Syrian Arab Airlines (IATA airline code 
RB) 
Government and politics
- Radio Bremen, a public broadcaster for the German state of Bremen
 - Railway Bureau (disambiguation), any government agencies for railway of several countries
 - 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
- Racing Bulls, Formula One racing team
 - RB Leipzig, German football club
 - Right back, a defensive position in association football
 - Running back, a position in North America football