BC
- AP Calculus BC
- B.C. (comic strip)
- BC (video game)
- BC Card
- BC Cygni
- BC Powder
- BC The Archaeology of the Bible Lands
- Bachelor's degree
- Backcrossing
- Backward compatibility
- Baghdad College
- Baguio
- Baja California
- Bakersfield College
- Ballistic coefficient
- Banbridge Chronicle
- Base curve radius
- Basilian Chouerite Order of Saint John the Baptist
- Battle command
- Bayonet cap
- Before Christ
- Belaruskaja Čyhunka
- Bella Center
- Bellevue College
- Benedictine College
- Benedictine Military School
- Bergen Catholic High School
- Black Clover
- Black carbon
- Blind carbon copy
- Bliss bibliographic classification
- BookCrossing
- Boston College
- Boston College Eagles
- Botswana
- Brasseries du Cameroun
- Brazosport College
- British Columbia
- British Council
- Brooklyn College
- Broward College
- Brunswick Corporation
- Bullet Club
- Bullshit
- Buoyancy compensator (diving)
- Burr Chamberlain
- NZR BC class
- Propaganda (Sparks album)
- Skymark Airlines
- × Brassocattleya