{{wiktionary|ARB|arb}}
'''ARB''', '''ARb''' or '''arb''' may refer to:
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==Brands and enterprises== * 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
==Computing== * Arb, arbitrary-precision package, part of FLINT: Fast Library for Number Theory * OpenGL Architecture Review Board ** ARB assembly language, for GPU instructions
== Government == * Administrative Review Board (Labor) of the US Department of Labor * Air Resources Board, California Environmental Protection Agency * Architects Registration Board, UK statutory body
==Language== * Arb (gesture), hand signals used on financial trading floors * Modern Standard Arabic (ISO 639-3 code)
== Military == * 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)
==Science, engineering, and health care== *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}})
==Sports== * ARB (martial art), a Russian martial art * Australian Racing Board for horse racing
==Transportation== * 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
==Other uses== * 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}}
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