ARB

ARB, ARb or arb may refer to:

Military

• Administrative Review Board, a military body that conducts annual hearings to determine whether captives held in the Guantanamo Bay detention camps continue to represent a threat to the USA's national security
• Air Reserve base, a United States Air Force base converted for use by the Reserves

Science, technology, engineering, and health care

• Angiotensin receptor blocker (angiotensin II receptor antagonist), a medication for treating high blood pressure
• Arbitrary unit
• Anti-roll bar
• ARB Project, for phylogenetic analysis
• Arbitron, previously American Research Bureau, a radio audience research company
• OpenGL Architecture Review Board, a consortium previously governing OpenGL
• ARB assembly language, a low-level shading language defined by the OpenGL Architecture Review Board

Transportation and Geography

• Akawaio language (SIL code), a Cariban language of Guyana
• Ann Arbor Municipal Airport (IATA airport code)
• Ann Arbor (Amtrak station) (Amtrak station code)
• Arab States, UNESCO region
• Arbroath railway station, United Kingdom (National rail code)
• Arth-Rigi-Bahn, a Swiss mountain railway

Government

• Administrative Review Board (Labor), a unit of the United States Department of Labor
• Air Resources Board, California Environmental Protection Agency

Finance, Economics, and Business

• Accounting Research Bulletin, recommended accounting procedures in the U.S. issued by the American Institute of Certified Public Accountants (AICPA)
• Arbitrage
• Arbitrage betting
• Arbitrary
• Arbitration
• Arb (gesture), a system of hand gestures used most notably on the Chicago Mercantile Exchange

Other uses

• Armée Révolutionnaire Bretonne (Breton Revolutionary Army), an armed Breton Nationalist secret society that has attacked France
• Architects Registration Board, the statutory body for the registration of architects in the United Kingdom
• ARB (band), a Japanese rock band
• Australian Racing Board, the peak national administration body for Thoroughbred racing in Australia
• ARB (martial art), a Russian martial art