BSR
BSR is an abbreviation for:
- Berliner Stadtreinigungsbetriebe , a service company in the field of waste disposal
- District school board, school authority in Austria
- Biceps tendon reflex, a muscle reflex of the biceps brachii muscle, see Eigenreflex #Biceps tendon reflex
- Blood sedimentation reaction , also abbreviated as ESR (blood sedimentation rate) or BKS (blood cell sedimentation)
- Bobsleigh sport, skeleton sport, luge sport , club name of the BSR Rennsteig Oberhof
- Bottom Simulating Reflector , a reflection horizon under the sea floor
- British School at Rome , a British educational and research institute in Rome
- Federal working group for student reservists , today Federal Association for Security Policy at Universities
- Federal Security Council , control and coordination body for German security policy
- Basra Airport in Iraq (IATA code)