APB

• All-points bulletin, a broadcast (about a wanted suspect or missing person) issued from one US law enforcement agency to another
• Acquisition Program Baseline, in the United States military

• "A.P.B.", a song on Womack & Womack's 1984 album Love Wars
• APB (band), a Scottish band
• Apoptygma Berzerk, a Norwegian electronic music group
• APB (1987 video game)
• APB: All Points Bulletin, a 2010 massively multiplayer online game for Microsoft Windows
• APB (TV series), an American television series that aired in 2017

• Abattoir Public de Bujumbura, a slaughterhouse in Bujumbura, Burundi
• Accounting Principles Board, the former authoritative body of the American Institute of Certified Public Accountants
• Alliance for Brazil
• Asia Pacific Breweries
• Atrocities Prevention Board, an interagency body in the U.S. government that evaluates long-term risks of genocide
• Auditing Practices Board, a committee of the Financial Reporting Council

• 6-APB, a psychoactive compound similar in structure to MDA
• Advanced Peripheral Bus, a type of microcontroller bus
• Atrial premature beat, a cardiac dysrhythmia

• The Albany Pine Bush, an inland pine barrens
• Appley Bridge railway station's station code
• A version of the Stechkin automatic pistol with integrated silencer
• Aft pressure bulkhead, part of commercial airliners or other planes that have pressurized cabins
• A US Navy hull classification symbol: Self-propelled barracks ship (APB)
• Armor Piercing Bullets

• All Points Bulletin (disambiguation)

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