| BTR | B Turbo Ruf 
| Others |
| BTR | Bachelors of Therapeutic Recreation
| Others |
| BTR | Bachelors Til The Rapture
| Others |
| BTR | Back To Room
| Others |
| BTR | Back Track
| Others |
| BTR | Bali Tubing and Rafting
| Others |
| BTR | Bangla Tossa Rejection
| Others |
| BTR | Basic Training Retreat
| Others |
| BTR | Baton Rouge, Louisiana USA
| Others |
| BTR | Behavioral Treatment Residence
| Others |
| BTR | Behind Tape Reader
| Others |
| BTR | Bentley Turbo R
| Others |
| BTR | Bentz Thompson Rietow
| Others |
| BTR | Betrayal Trauma Recovery
| Others |
| BTR | Better Than a Rock
| Others |
| BTR | Better Than Roasted
| Others |
| BTR | Better Than Robby
| Others |
| BTR | Between The Ropes
| Others |
| BTR | Beyond the Rack
| Others |
| BTR | Bezold Type Reflex
| Others |
| BTR | Bi thermal reinforcement
| Others |
| BTR | Bias Transfer Roller
| Others |
| BTR | Biceps Tendon Reflex
| Others |
| BTR | Big Time Rush
| Others |
| BTR | Bit Test and Reset
| Others |
| BTR | Bit Transfer Rate
| Others |
| BTR | Biturbo Racer
| Others |
| BTR | Black Top Rebels
| Others |
| BTR | Blackout Trading Restriction
| Others |
| BTR | Blog Talk Radio
| Others |
| BTR | Blood and Tissue Registration
| Others |
| BTR | Blood and Tissue Registration system
| Others |
| BTR | Blood Type Racing
| Others |
| BTR | Blue Thunder Revolution
| Others |
| BTR | Board of Technical Registration
| Others |
| BTR | Bonnet Truck
| Others |
| BTR | Boom Time Remaining
| Others |
| BTR | Born To Rave
| Others |
| BTR | Born to Run
| Others |
| BTR | Boston Teacher Residency
| Others |
| BTR | Brian Tooley Racing
| Others |
| BTR | British Tape Recorder
| Others |
| BTR | British Truck Racing
| Others |
| BTR | Broadband Technology Report
| Others |
| BTR | BroneTransporteR
| Others |
| BTR | Budget Transfer Request
| Others |
| BTR | Buick Turbo Regal
| Others |
| BTR | Build Test & Release
| Others |
| BTR | Build To Rent
| Others |
| BTR | Build Train Race
| Others |
| BTR | Built To Rule
| Others |
| BTR | Burbank Trece Rifa
| Others |
| BTR | Bureau of Tourism Research (based in Canberra)
| Others |
| BTR | Burn Time Remaining
| Others |
| BTR | Bus Timing Register
| Others |
| BTR | Bus TRansfer
| Others |
| BTR | Business Tax Receipt
| Others |
| BTR | Business Tax Receipts
| Others |
| BTR | Business Technology Resiliency
| Others |