| Abbreviation | Definition |
|---|---|
| CARF | Cicatricial Alopecia Research Foundation |
| CASF | Cambodian Arts and Scholarship Foundation |
| CASF | Cameron Area Scholarship Foundation |
| CAWF | Californians Against Waste Foundation |
| CBCF | Coastal Bend Community Foundation |
| CBCF | Cure Breast Cancer Foundation |
| CBCFI | Cebu Biodiversity Conservation Foundation Inc |
| CBF | Challenging Behaviour Foundation |
| CBF | Chicago Bar Foundation |
| CBF | Community Broadcasting Foundation |
| CBFW | Cherie Blair Foundation for Women |
| CBIF | California Building Industry Foundation |
| CBIF | Children's Body Image Foundation |
| CBIF | Collier Building Industry Foundation |
| CBLF | Covered Bond Label Foundation |
| CBRF | Catherine B Reynolds Foundation |
| CBSF | Chinese Blood Services Foundation (Taipei, Taiwan) |
| CBSF | Council Bluffs Schools Foundation |
| CCAF | California Communications Access Foundation |
| CCAF | Category of Categories as a Foundation |