| Acronym | Definition |
|---|
| BARS | Barn Swallow (Hirundo rustica, bird species) |
| BARS | Backup and Restore System |
| BARS | Behaviorally Anchored Rating Scale |
| BARS | Barry Adrian Reese Story (music album) |
| BARS | Battlefield Augmented Reality System (Office of Naval Research) |
| BARS | Barnes Akathisia Rating Scale |
| BARS | Behavioral Assessment and Research System |
| BARS | Biodiversity Action Recording System (UK) |
| BARS | Baseline Accounting and Reporting System |
| BARS | Base Accounts Receivable System |
| BARS | BNCOC Automated Reservation System |
| BARS | Boeing Action Request System |
| BARS | Business Area Requirements Specification |