| Abbreviation | Definition |
|---|---|
| CBO | Conduction Band Offset |
| CBO | Count Basie Orchestra |
| CBOD | Clamp Band Operating Device |
| CBOI | Cross Border Orchestra Ireland |
| CBOI | Cross Border Orchestra of Ireland |
| CBOK | Concert Band of Kanata |
| CBOP | Concord Ballet Orchestra Players |
| CBP | Country Blues and Pop |
| CBPF | Complex Band Pass Filter |
| CBRB | Chris Brokaw Rock Band |
| CBRS | Citizens Band Radio Service |
| CBS | Cut Before Song |
| CBSC | City of Birmingham Symphony Chorus |
| CBSO | City of Birmingham Symphony Orchestra |
| CBT | Cock and Ball Torture |
| CBUK | Consumer Broadband United Kingdom |
| CC | Classical and Contemporary |
| CCCG | Covington Conyers Choral Guild |
| CCDB | Campbelltown Camden District Band |
| CCJO | Capital City Jazz Orchestra |