CBT
- CBT-FM
- Cabot Corp
- Campaign for Better Transport (disambiguation)
- Cannabitriol
- Ceneri Base Tunnel
- Center for Biochemical Technology
- Certified Broadcast Technologist
- Chicago Board of Trade
- Children's Book Trust
- Cincinnati Bell Telephone
- Closed beta test
- Cock and Ball Torture (band)
- Cock and ball torture
- Cognitive behavioral therapy
- Committee on Bible Translation
- Commonwealth Bank Trophy
- Competitive Balance Tax
- Complete binary tree
- Compulsory Basic Training
- Computer-based testing
- Computer-based training
- Confederação Brasileira de Tênis
- Connecticut Bank and Trust Company
- Core body temperature
- Core-based trees
- United States Military Academy