| Abbreviation | Definition |
|---|---|
| FCLF | Frederick County Landmarks Foundation |
| FCN | Foundation for Children in Need |
| FCNB | Foundation Church of the New Birth |
| FCPM | Foundation Certificate in Pest Management |
| FCRE | Foundation for Cancer Research and Education |
| FCRE | Foundation for Cardiological Research and Education |
| FCRE | Foundation for Cardiovascular Research and Education |
| FCRF | Fancy Color Research Foundation |
| FCRF | Fetal Care Research Foundation |
| FCRF | Florida Citrus Research Foundation |
| FCRF | Future Crime Research Foundation |
| FCSF | Foster Care Support Foundation |
| FCTF | First Coast Tennis Foundation |
| FCTP | Foundation Certified Training Program |
| FCYF | Fair Children Youth Foundation |
| FCYF | Finnish Children and Youth Foundation |
| FD | Foundation Deformation |
| FDAB | Foundation Doctor Advisory Board |
| FDAD | Foundation Diploma in Art and Design |
| FDAF | Federal Drug Agents Foundation |