| Acronym | Definition |
|---|
| BRS | Black Rock Shooter (animation) |
| BRS | Bureau of Rural Sciences (Australia) |
| BRS | Board Review Series (book) |
| BRS | Brass |
| BRS | Bovine Respiratory Syncytial Virus |
| BRS | Big Red Switch (referring to the power switch on older personal computers) |
| BRS | Bibliographic Research Service |
| BRS | Bibliographic Retrieval Service |
| BRS | Business Recovery Services |
| BRS | Break Request Signal |
| BRS | Big Red Switch |
| BRS | Broadband Radio Service (telecommunications) |
| BRS | Boston Red Sox |
| BRS | Blue Ridge School (Virginia) |
| BRS | Brown & Root Services (logistics services; Halliburton Company) |
| BRS | Biennial Reporting System (US EPA) |
| BRS | Banque Régionale de Solidarité (French: Regional Solidarity Bank; various locations) |
| BRS | Business Risk Services |
| BRS | Brown Recluse Spider |
| BRS | British Rock Symphony (UK) |
| BRS | Ballistic Recovery System (parachute recovery system for aircraft) |
| BRS | Business Resource Software |
| BRS | Baggage Reconciliation System |
| BRS | Buffalo Rocket Society (New York) |
| BRS | Business and Regional Systems |
| BRS | Bombesin Receptor Subtype |
| BRS | Blackrock Spire (World of Warcraft gaming) |
| BRS | Bertrand Russell Society |
| BRS | Beacon Roofing Supply, Inc. (Peabody, MA) |
| BRS | Baroreceptor Sensitivity (medical analysis measure) |
| BRS | Business Requirement Specification |
| BRS | Bateau de Reconnaissance et de Sauvetage (French: Reconnaissance and Rescue Boat) |
| BRS | Business Recovery Service |
| BRS | Board Recognized Specialist |
| BRS | Building Research Station (UK) |
| BRS | Base Radio Systems |
| BRS | Bibliographic Retrieval Services, Inc. |
| BRS | Broadband Radiometer Station (Atmospheric Radiation Measurement; US Department of Education) |
| BRS | Bristol, England, United Kingdom - Bristol (Airport Code) |
| BRS | Bioracing Series (France) |
| BRS | Bottom Right Side |
| BRS | Butterfly-Radial Slot (microwave theory) |
| BRS | Budget Revision System |
| BRS | Budget Review System |
| BRS | Backup Recovery System |
| BRS | Brotherhood of Railroad Signalman |
| BRS | Blind Rehabilitation Specialist |
| BRS | Boston Retirement System |
| BRS | Brevet de Randonneur Sportif (French cycling event) |
| BRS | B-Mode Receiving Station |
| BRS | Bilancio Comunitario Rettificativo e Suppletivo (Italian: supplementary and amending budget) |
| BRS | Block Recorder System |
| BRS | Bistatic Radar System |
| BRS | Broadcasting Squadron |
| BRS | Béton Routes et Sécurité (French construction company) |
| BRS | Bachelor of Recreation Studies |
| BRS | Bachelor's of Religious Studies Degree |
| BRS | Behyneh Ravansaz Sanat Co. |
| BRS | Belden Russonello Stewart LLC (Washington, DC) |
| BRS | Block Received Signal |
| BRS | BEESA Rating Services (Black Economic Empowerment South Africa) |
| BRS | Bio Response Systems |
| BRS | Bachelor of Rural Studies |
| BRS | Bachelor of Resource Studies |
| BRS | Bungalow Renovation Services (France) |
| BRS | Budget and Reporting System |