| BCJ | Baca Grande, Colorado USA
| Others |
| BCJ | Bach Collegium Japan
| Others |
| BCJ | Bachelor of Communication and Journalism
| Others |
| BCJ | Bachelor of Criminal Justice
| Others |
| BCJ | Bandwidth Change Reject
| Others |
| BCJ | Basket Club Jouannais
| Others |
| BCJ | Batang City Jail
| Others |
| BCJ | Beam Column Joint
| Others |
| BCJ | Bern Carrasco and Johansson
| Others |
| BCJ | Besud, Cheng, & Joshi, LLC
| Others |
| BCJ | Blood Cancer Journal
| Others |
| BCJ | Bohlin Cywinski Jackson
| Others |
| BCJ | Brendan Curran Johnson
| Others |
| BCJ | British Corrosion Journal
| Others |
| BCJ | Bugatti Club Japan
| Others |
| BCJ | Building Center of Japan
| Others |
| BCJ | Bunny Cookie Jars
| Others |
| BCJ | Bureau de Coordination des Jeunes
| Others |
| BCJ | William J. Brennan Jr. Center for Justice
| Others |