| Abbreviation | Definition |
|---|---|
| FEF | Fraser Educational Foundation |
| FEF | Friends of the Environment Foundation |
| FEF | Frisco Education Foundation |
| FEF | Frontier Education Foundation |
| FEL | Foundation For Endangered Languages |
| FEMC | Foundation For the Enhancement of Mitchell County |
| FEMI | Foundation to Earth Mankind and Initiative |
| FEMR | Foundation for Education and Musculoskeletal Research |
| FEMR | Foundation for Education of Musculoskeletal Research |
| FEPS | Foundation for Eden Prairie Schools |
| FEPS | Foundation for European Progressive Studies |
| FET | Foundations of Emerging Technologies |
| FETA | Foundation for Emerging Technologies and Arts |
| FF | Future Foundation |
| FFAC | Foundation For Aviation Competence |
| FFAF | Free For All Foundation |
| FFAF | Freedom From Atheism Foundation |
| FFAH | Foundation For Affordable Housing |
| FFAH | Foundation for Atlantic Heroes |
| FFAI | Foundation for Art Initiatives |