ARB

• ARB, Inc., predecessor of Primoris Services Corporation
• American Research Bureau
• ARB (Azerbaijani TV channel), an Azerbaijani television network
• ARB 24, an Azerbaijani television news channel
• ARB Günəş, an Azerbaijani children's television channel
• Amanah Raya Berhad, a Malaysian trustee company

• Arb, arbitrary-precision package, part of FLINT: Fast Library for Number Theory
• OpenGL Architecture Review Board
• ARB assembly language, for GPU instructions

• Administrative Review Board (Labor) of the US Department of Labor
• Air Resources Board, California Environmental Protection Agency
• Architects Registration Board, UK statutory body

• Arb (gesture), hand signals used on financial trading floors
• Modern Standard Arabic (ISO 639-3 code)

• Administrative Review Board, for prisoners in the Guantánamo Bay detention camps
• Air Rescue Boat
• Two US Navy hull classification symbols: Battle damage repair ship (ARB) and Base repair ship (ARb)

• Accumulative roll bonding of metal sheets
• Angiotensin II receptor blocker, a blood pressure medication
• Anti-roll bar, automotive suspension component to improve stability during cornering, known as a 'sway bar' in US English
• ARB Project, for phylogenetic analysis
• Arbitrary unit or arb unit
• Royal Academies for Science and the Arts of Belgium ({{langx|fr|Académie Royal de Belgique|link=no}})

• ARB (martial art), a Russian martial art
• Australian Racing Board for horse racing

• Ann Arbor station, Amtrak station in Michigan, station code
• Ann Arbor Municipal Airport (IATA airport code)
• Arbroath railway station, UK (National rail code)
• Arth-Rigi-Bahn, a Swiss mountain railway

• ARB, Accounting Research Bulletin, documents on accounting issues revised by the Accounting Principles Board
• ARB (band), a Japanese rock band
• Breton Revolutionary Army ({{langx|fr|Armée Révolutionnaire Bretonne|link=no}}), an illegal organization
• {{lookfrom|ARB}}
• {{lookfrom|Arb}}
• {{in title|ARB}}
• {{in title|Arb}}

{{disambiguation|geo}}