| Abbreviation | Definition |
|---|---|
| CAZA | Canadian Accredited Zoos and Aquariums |
| CAZA-AZAC | Canada's Accredited Zoos and Aquariums - Aquariums et Zoos Accrédités du Canada |
| CB | CaringBridge |
| CB | Club Beyond |
| CBA | Canadian Braille Authority |
| CBAHI | Central Board for Accreditation of Healthcare Institutions |
| CBC | Citizens for Better Care |
| CBCC | Canadian Black Chamber of Commerce |
| CBCD | Center for the Biology of Chronic Disease |
| CBCF | Canadian Breast Cancer Foundation |
| CBCF | Congressional Black Caucus Foundation |
| CBCFI | Congressional Black Caucus Foundation, Inc. |
| CBCNEI | Council of Baptist Churches in North East India |
| CBDE | Center for Business Development and Entrepreneurship |
| CBEC | Chesapeake Bay Environmental Center |
| CBF | Chesapeake Bay Foundation |
| CBF | CollegeBound Foundation |
| CBM | Christian Blind Mission |
| CBMI | Christian Blind Mission International |
| CBPP | Center on Budget and Policy Priorities |