| BASC | Barrow Arctic Science Consortium 
| Others |
| BASC | Basic ALO Skills Course
| Air Force |
| BASC | Bay Area Saab Club
| Others |
| BASC | Bay Area Shooting Club
| Others |
| BASC | Bay Area Solar Consortium
| Others |
| BASC | Bedford Ambulatory Surgical Center
| Others |
| BASC | Before and After School Care
| Others |
| BASC | Behavior Assessment Scale For Children
| Others |
| BASC | Behavior Assessment System For Children
| Others |
| BASC | Beltrami Area Service Collaborative
| Others |
| BASC | Bengali Association of Southern California
| Others |
| BASC | Berkeley APEC Study Center
| Others |
| BASC | Berkeley Atmospheric Sciences Center
| Others |
| BASC | Biblioteca Archivio Storico Comunale
| Others |
| BASC | Biochemistry Across the School Curriculum
| Others |
| BASC | Biology Academic Success Center
| Others |
| BASc | Blood pressure in Acute Stroke Collaboration
| Others |
| BASC | Board on Atmospheric Sciences and Climate
| Others |
| BASC | Boeing Aerospace Support Centre
| Others |
| BASC | Border Area Sangharsh Committee
| Committee |
| BASC | Boston Application Security Conference
| Others |
| BASC | BRCA1-associated genome surveillance complex
| Others |
| BASC | British Association for Shooting and Conservation
| Others |
| BASC | British Association of Shooting and Conservation
| Others |
| BASC | British Association Shooting And Conservation
| Others |
| BASC | Brockport Auxiliary Service Corporation
| Others |
| BASC | Brockport Auxiliary Services Corporation
| Others |
| BASC | Broken Arrow Soccer Club
| Others |
| BASC | Bucks Adult Soccer Club
| Others |
| BASC | Building America Solution Center
| Others |
| BASC | Business Administration Steering Committee
| Others |
| BASC | Business Alliance for Secure Commerce
| Others |
| BASC | Business Anti-Smuggling Coalition
| Others |
| BASC | Business Aviation Safety Consortium
| Others |
| BASC | The British Association For Shooting And Conservation
| Others |