| BACS | Bachelor of Administrative and Commercial Studies 
| Others |
| BACS | Bachelor of Arts in Communication Studies
| Others |
| BACS | Bank Account Clearing System
| Others |
| BACS | Bank Automated Clearing System
| Others |
| BACS | Bank Automated Credit System
| Others |
| BACS | Bankers Automated Clearing Service
| Others |
| BACS | Bankers Automated Clearing Services
| Others |
| BACS | Bankers Automated Clearing System
| Others |
| BACS | Bankers Automated Credit Service
| Others |
| BACS | Bankers Automatic Clearing System
| Others |
| BACS | Bankers' Automated Clearing Services
| Others |
| BACS | Banks Automated Clearing System
| Others |
| BACS | Battery Accessory Car Service
| Others |
| BACS | Bay Area Christian School
| Others |
| BACS | Bay Area Community Services
| Others |
| BACS | Bay Area Commuter Services
| Others |
| BACS | Bay Area Computer Solutions
| Others |
| BACS | Berkeley Animal Care Services
| Others |
| BACS | Berkeley's Animal Care Services
| Others |
| BACS | Body Axis Coordinate System
| Others |
| BACS | Boston Archdiocesan Choir School
| Others |
| BACS | British Association for Canadian Studies
| Others |
| BACS | British Association for Chemical Specialities
| Others |
| BACS | British Association for Chinese Studies
| Others |
| BACS | British Automobile Club Sweden
| Others |
| BACS | Bryn Athyn Church School
| Others |
| BACS | Building Access Control System
| Others |
| BACS | Building Automation and Control System
| Others |
| BACS | Building Automation and Control Systems
| Others |
| BACS | Business Administration Computing Services
| Others |
| BACS | Business and Community Shares
| Others |
| BACS | Business And Computer Science
| Others |
| BACS | Business Archives Council of Scotland
| Others |