| Acronym | Definition |
|---|
| ABR | Accredited Buyers Representative (real estate certification) |
| ABR | Advance Baton Rouge (Baton Rouge, LA) |
| ABR | Abraham |
| ABR | Auditory Brainstem Response (audiology) |
| ABR | August Burns Red (band) |
| ABR | Abridged |
| ABR | American Board of Radiology |
| ABR | Adaptive Bit Rate (computer streaming) |
| ABR | Available Bit Rate |
| ABR | American Book Review (est. 1977; publication) |
| ABR | Area Border Router (Sprint) |
| ABR | Average Bit Rate |
| ABR | Automatic Baud Rate |
| ABR | Automatic Bios Recovery |
| ABR | Auto Busy Redial |
| ABR | Adobe Brushes File |
| ABR | Automatic Beacon Removal |
| ABR | Automatic Backup and Recovery |
| ABR | Advanced Bit Rate |
| ABR | Auxiliary Bass Radiator |
| ABR | Answer Bit Ratio |
| ABR | Area Border Router |
| ABR | as Billed Rate |
| ABR | Australian Business Register |
| ABR | Approved Budget Request |
| ABR | Association of British Residents (Sri Lanka) |
| ABR | Annualized Base Rent |
| ABR | Adolescent Birth Rate |
| ABR | Auditory Brain Stem Response |
| ABR | Architectural Barrier Removal (various locations) |
| ABR | Average Bit Rate (sound encoding) |
| ABR | Anaerobic Baffled Reactor |
| ABR | Associativity-Based Routing |
| ABR | Angle Bracket (timber connector) |
| ABR | African Business Roundtable |
| ABR | Automatic Baud Rate (storage technique) |
| ABR | Automatic Budget Reallocation |
| ABR | American Bicycle Racing (Kenosha, WI) |
| ABR | Aberdeen, SD, USA - Aberdeen Regional Airport (Airport Code) |
| ABR | Arbres Binaires de Recherche (French: Binary Search Trees) |
| ABR | Agreement for Boat Repair |
| ABR | Academic Bill of Rights |
| ABR | Angiographic Binary Restenosis |
| ABR | Absolute Bed Rest |
| ABR | Association of Battery Recyclers |
| ABR | American Born Russian |
| ABR | Acrylate-Butadiene Rubber |
| ABR | Accomplishment Based Renewal (US NSF) |
| ABR | Area Business Representative |
| ABR | Australian Book of Reference (Australian Defence Force) |
| ABR | Adult Breastfeeding Relationship |
| ABR | Audiometric Brainstem Response (neurology) |
| ABR | Abortus-Bang Ring (test) |
| ABR | Above Base Rate |
| ABR | Average Broker Recommendation (Zacks investing reports) |
| ABR | Applied Benefits Research |
| ABR | Alex Brown Racing |
| ABR | Aero-Ballistic Rocket |
| ABR | Airborne Relay |
| ABR | Averaged Brainstem Response |
| ABR | Accelerated Benefits Rider (life insurance) |
| ABR | Answer to Bid Ratio (telecommunications) |
| ABR | Average Bandwidth Requirement |
| ABR | Advanced Breeder Reactor |
| ABR | Amphibian Boat Reconnaissance |
| ABR | Attogen Biomedical Research |
| ABR | Abdominal Bowel Resection |
| ABR | Advanced Battery Research |
| ABR | Autonomous Boundary Router |
| ABR | Array Based Replication (storage technique) |
| ABR | Additional Billet Requirements |
| ABR | Automatic Bandwidth Response (Digital Link) |
| ABR | As Built Reconciliation |
| ABR | Agreement Boat Repair |
| ABR | Average Breath Rate |
| ABR | Accrued Benefit Ratio |
| ABR | Advanced Bus Remanufacturing |