BTC
- BAL Bashkirian Airlines
- BTC (Bahamas)
- BTC City
- BTC Touring
- Baku–Tbilisi–Ceyhan pipeline
- Balaghat Junction railway station
- Balderstone Technology College
- Baptist Theological College of Southern Africa
- Batticaloa Airport
- Behavior Tech Computer
- Belize Trans Colours
- Bellevue Transit Center
- Bellingham Technical College
- Belmont Technical College
- Betacellulin
- Bicycle torque coupling
- Bitcoin
- Blackhawk Technical College
- Blake Transit Center
- Block Truncation Coding
- Bodoland Territorial Council
- Botswana Telecommunications Corporation
- Bowerman Track Club
- Brian Tyler Cohen
- British Transport Commission
- Britomart Transport Centre
- Bucharest Tower Center
- Budapesti TC
- Bulgarian Telecommunications Company
- Busan Transportation Corporation
- Busch Tennis Courts
- Curtiss XBTC
- Trimesic acid
- Triphosgene
- X86 instruction set