| Rank | Abbreviation | Meaning |
|---|
| ***** | PBSA | Polybutylene Succinate Adipate
| |
| *** | PBSA | Pakistan Boy Scout Association
| |
| *** | PBSA | Phosphate-Buffered Saline
| |
| ** | PBSA | Pakistan Billiards and Snooker Association
| |
| ** | PBSA | Patricia B Schwartz and Associates
| |
| ** | PBSA | Poly Butylene Succinate Adipate
| |
| ** | PBSA | Participatory Benefit Sharing Agreements
| |
| ** | PBSA | Pension Benefits Standards Act
| |
| * | PBSA | 2-phenylbenzimidazole-5-sulfonic acid
| |
| * | PBSA | Papers of the Bibliographical Society of America
| |
| * | PBSA | Professional Bartending Schools of America
| |
| * | PBSA | Professional Business Solutions of America
| |
| * | PBSA | Professional Beach Service Association
| |
| * | PBSA | Pro Bono Students America
| |
| * | PBSA | Program Budget System Accounting
| |
| * | PBSA | Plaque Behind Stent Area
| |
| * | PBSA | Pro Bono Students Australia
| |
| * | PBSA | Papers of the Bibliographic Society of America
| |
| * | PBSA | Peabody Baldwin Shadow Area
| |
| * | PBSA | Philadelphia Building Superintendent Association
| |
| * | PBSA | Pravasi Bharatiya Samman Awards
| |
| * | PBSA | Protein-bound sialic acid
| |
| * | PBSA | Peconic Bay Sailing Association
| |
| * | PBSA | polymerized bovine serum albumin
| |
| * | PBSA | Professional Boxing Safety Act
| |