BCT may refer to:

• Boca Raton Airport (IATA: BCT), in Palm Beach County, Florida
• Baire category theorem, a result from general topology
• Banque Centrale de Tunisie, Tunisia
• Basic Cadet Training, initial military training for new cadets at the United States Air Force Academy
• Basic Combat Training
• Bat Conservation Trust, a British charity
• Box compression test, a measure in corrugated fiber board packaging design and testing
• Brigade combat team, the basic deployable unit of maneuver in the United States Army
• Broward County Transit, a Fort Lauderdale-based system of public transportation
• Bucks County Transport, bus transportation organization in Pennsylvania
• Buffalo Central Terminal, a railroad station located in Buffalo, New York
• BC Transit, the company responsible for public transit in most of British Columbia
• Body Centered Tetragonal, a type of crystal structure, see Tetragonal crystal system
• Business Chinese Test, see List of language proficiency tests § Mandarin
• Bad Compilation Tapes, an independent punk/hardcore music label