ARB

ARB, ARb or arb may refer to:

Brands and enterprises

 * ARB, Inc., predecessor of Primoris Services Corporation
 * American Research Bureau
 * ARB (Azerbaijani Television Company), an Azerbaijani television network
 * ARB 24, an Azerbaijani television network

Computing

 * Arb, an interval arithmetic package related to GNU MPFR
 * OpenGL Architecture Review Board
 * ARB assembly language, for GPU instructions

Finance, economics, and business

 * ARBs, Accounting Research Bulletins, documents on accounting issues revised by the Accounting Principles Board

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 (Académie Royal de Belgique)

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 (band), a Japanese rock band
 * Breton Revolutionary Army (Armée Révolutionnaire Bretonne), an illegal organization