| Acronym | Meaning |
| BSR | Bankers' Selling Rate (airlines) |
| BSR | Barrett Sniper Rifle (US Army) |
| BSR | Base Spares Report |
| BSR | Base Structure Report (US DoD) |
| BSR | Base Support Radio |
| BSR | Basic System Release |
| BSR | Bâtiment de Soutien de Région (French: Regional Support Vessel) |
| BSR | Beneficiary Service Representative (US DoD) |
| BSR | Berliner Stadtreinigung (German: Berlin Sanitation; Germany) |
| BSR | Big Sandy Rancheria (Bureau of Indian Affairs; California) |
| BSR | Bit Slippage Rate |
| BSR | Bite Status Register (NASA) |
| BSR | Brigade Spéciale de Recherche (French: Special Research Brigade; Belgium) |
| BSR | Budget System of Record |
| BSR | Burster Size Reduction (hazardous waste, machine to cut projectile bursters prior to incineration) |
| BSR | Business Strategy Report |
| BSR | Byte Status Register |
| BSR | Guine Bissau Airlines (ICAO code) |