BCT
- BC Transit
- Bad Compilation Tapes
- Baire category theorem
- Banque Centrale de Tunisie
- Basic Combat Training
- Bat Conservation Trust
- Boca Raton Airport
- Boise Contemporary Theater
- Box compression test
- Brigade combat team
- Broward County Transit
- Bucks County Transport
- Buffalo Central Terminal
- Mumbai Central railway station
- Tetragonal crystal system
- United States Air Force Academy