| Acronym | Definition |
|---|
| PAB | Panama Balboa (ISO currency code) |
| PAB | Personal Address Book (Microsoft Outlook) |
| Pab | Pyrococcus Abyssi |
| PAB | Polyclonal Antibody |
| PAB | Philadelphia Architects and Buildings |
| PAB | Podcasters Across Borders (Ste-Marthe-sur-le-Lac, Quebec, Canada) |
| PAB | Private Activity Bond |
| PAB | Planning Advisory Board |
| PAB | Pick A Brick (Lego shop) |
| PAB | Pennsylvania Association of Broadcasters |
| PAB | Peek A Boo (children's game) |
| PAB | Patti Ann Browne (TV news anchor) |
| PAB | Public Accountants Board (Singapore) |
| PAB | Passenger Air Bag |
| PAB | Punk Ass Bitch |
| PAB | Performing Arts Building (Virginia Tech) |
| PAB | Prior Authorization of Benefits |
| PAB | Projected Available Balance |
| PAB | Patrick Air Force Base (Florida) |
| PAB | Programming and Activities Board (Associated Students of Arizona State University; Phoenix, AZ) |
| PAB | Public Affairs Branch |
| PAB | Protected At Birth (neonatal tetanus) |
| PAB | Pension Appeal Board (Canada Pension Plan) |
| PAB | Premature Atrial Beat |
| PAB | Pain Assessment Battery |
| PAB | Peanut Advisory Board |
| PAB | Payback's A Bitch |
| PAB | Parts Advisory Board |
| PAB | Payment Arrangement Broken |
| PAB | Physical Address Buffer |
| PAB | Passive Aggressive Behavior (psychology) |
| PAB | Performance Assurance Board (Elexon Ltd.; UK) |
| PAB | Progressive Adult Beverage (alcohol product) |
| PAB | Poster Audit Bureau |
| PAB | Plant and Animal Biotechnology |
| PAB | Property Accounting Branch (NAVCOMPT) |
| PAB | Peripheral Attack Bomber |
| PAB | Pointe Aux Barques (Michigan) |
| PAB | Per Ardua Beagles (UK) |
| PAB | Postapplication Bake |
| PAB | Preliminary as Built |
| PAB | Percutaneous Aspiration Biopsy |
| PAB | Polyaspartate Biopolymer |
| PAB | Personal Accident Benefits (insurance coverage) |
| PAB | Personal Acting Body |
| PAB | Product Assurance Board (Indian Space Research Organisation) |
| PAB | Posterior Axillary Boost (radiotherapy) |
| PAB | Provincial Adjudication Board |
| PAB | People Against Boredom (Riverside, CA band) |
| PAB | Prosecuting Attorney's Board |