| Abbreviation | Definition |
|---|---|
| CBDCOM | Chemical and Biological Defense Command |
| CBDE | Chemical and Biological Defense Establishment |
| CBDP | Chemical and Biological Defense Program |
| CBE | Command Budget Estimate |
| CBE | Commander of the British Empire |
| CBEMA | Computer and Business Equipment Association |
| CBERS | China Brazil Earth Resources Satellite |
| CBFS | Cesium Beam Frequency Standard |
| C-BH | Camp Blackhorse |
| CBI | Chemical/ Biological Information |
| CBI | China Burma India |
| CBI | China Burma India [WW2 Theater of War] |
| CBI | Computer Based Instruction |
| CBIRF | Chemical-Biological Incident Response Force |
| CBIS | Chemical/Biological Information System |
| CBJTC | Camp Blanding Joint Training Center |
| CBK | Concealed Backup Knife |
| CBLA | Cape Breton Liberation Army |
| CBLA | Color Burst Liberation Army |
| CBLTU | Common Battery Line Terminal Unit |