| Rank | Abbreviation | Meaning |
|---|
| ***** | PBAS | Program Budget Accounting System
| |
| ***** | PBAS | Pupil Behaviour Assessment System
| |
| ***** | PBAS | Pipe Band Association of Scandinavia
| |
| **** | PBAS | Peter Beardsley Appreciation Society
| |
| **** | PBAS | Performance Budgeting and Accountability System
| |
| *** | PBAS | Prudent Benefits Administration Services
| |
| ** | PBAS | Program Budget Automated System
| |
| ** | PBAS | Private Business Advisory Services
| |
| * | PBAS | Periodicity-Based Algebraic Separation
| |
| * | PBAS | Program Budget Allocation System
| |
| * | PBAS | Puritan Bennett Aero Systems
| |
| * | PBAS | Performance Based Agreements
| |
| * | PBAS | polyclonal B-cell activators
| |
| * | PBAS | Partnership Brokers Accreditation Scheme
| |
| * | PBAS | Patient Behaviour Assessment Schedule
| |
| * | PBAS | Polish Business Advisory Service
| |
| * | PBAS | Parallels Business Automation Standard
| |
| * | PBAS | Planos Básicos Ambientais
| |
| * | PBAS | Performance Based Allocation System
| |
| * | PBAS | Performance Based Acquisitions
| |
| * | PBAS | platelet-bindable serum antibodies
| |