| APB | Abductor pollicis brevis 
| Others |
| APB | Absolute Permissive Block
| Others |
| APB | Academic Planning and Budget
| Others |
| APB | Academic Planning Budget
| Others |
| APB | Access Point and Bridge
| Others |
| APB | Accounting Principles Board
| Others |
| APB | Acid Producing Bacteria
| Others |
| APB | Acquisition Program Baseline
| Others |
| APB | Active Parking Brake
| Others |
| APB | Active Php Bookmarks
| Others |
| APB | Activities Program Board
| Others |
| APB | Advanced Pci Bridge
| Others |
| APB | Advanced Peripheral Bus
| Others |
| APB | Advanced Pharmaceutical Bulletin
| Others |
| APB | Advisory Policy Board
| Others |
| APB | Aft Pressure Bulkhead
| Others |
| APB | AIBA Pro Boxing
| Others |
| APB | Air Park Brake
| Others |
| APB | Airtel Payments Bank
| Others |
| APB | AIST Process Benchmarker
| Others |
| APB | Algemene Pharmaceutische Bond
| Others |
| APB | Algemene Publieke Beschouwingen
| Others |
| APB | All Parishioners Beware
| Others |
| APB | All Pigs Bulletin
| Others |
| APB | All Points Bulletin
| Others |
| APB | All Prayer Bulletin
| Others |
| APB | All Purpose Band
| Others |
| APB | All Purpose Bicycle
| Others |
| APB | All Purpose Bulletin
| Others |
| APB | Alpha Phi Beta
| Others |
| APB | Already Posted Before
| Others |
| APB | Always Pumping the Brakes
| Others |
| APB | Ambidextrous Push Button
| Others |
| APB | Amicale Panhard Belgique
| Others |
| APB | Ammunition Process Buildings
| Others |
| APB | Analog Processing Box
| Others |
| APB | Analytical Processing Benchmark
| Others |
| APB | Ansible Playbook Bundle
| Others |
| APB | Anti-Phase Boundary
| Others |
| APB | Apocalyptic Prophecy Brigade
| Others |
| APB | Application Policy Board
| Others |
| APB | AppNexus Programmable Bidder
| Others |
| APB | APU (Auxiliary Power Unit) Breaker
| Others |
| APB | Ardscoil Phobal Bheanntrai
| Others |
| APB | Area Planning Board
| Others |
| APB | Arizona Performance Buicks
| Others |
| APB | Asia Pacific Breweries
| Others |
| APB | Asia Pacific Broadcasting
| Others |
| APB | Association Pharmaceutique Belge
| Others |
| APB | Athletes Prepared By
| Others |
| APB | Atrial prematrue beat
| Others |
| APB | Atrial Premature Beat
| Others |
| APB | Audi Phone Box
| Others |
| APB | Auditing Practices Board
| Others |
| APB | Automated Police Bot
| Others |
| APB | Automatic Parking Brake
| Others |
| APB | Automatic Push Button
| Others |
| APB | Automotive Profit Builders
| Others |
| APB | Auxiliary Power Breaker
| Others |
| APB | Aviation Partners Boeing
| Others |
| APB | Awkward Public Boner
| Others |
| APB | Barracks ship (Auxiliary, Personnel, Barracks)
| Others |
| APB | Belgian Pharmacists Association
| Others |
| APB | The Association of Professional Biology (British Columbia, Canada)
| Others |