| Abbreviation | Definition |
|---|---|
| FLEF | Federal Law Enforcement Foundation |
| FLEF | Franklin Lakes Education Foundation |
| FLGR | Foundation for Local Government Reform |
| FLI | Foundation Leadership Institute |
| FLOWS | Foundations for Leaders Organizing for Water and Sustainability |
| FLPF | Free Library of Philadelphia Foundation |
| FLTC | Foundation for Long Term Care |
| FLUID | Foundation Language For User Interface Development |
| FLYTE | Foundation for Learning and Youth Travel Education |
| FMA | Foundational Model of Anatomy |
| FMBR | Foundation for Mind Being Research |
| FMCH | Foundation for Mother and Child Health |
| FMCH | Foundation for Mother Child Health |
| FMCI | Foundations of Mission Critical Infrastructure |
| FME | Foundations in Management and Entrepreneurship |
| FMEN | Foundation for Montessori Education in Nigeria |
| FMEP | Foundation for Middle East Peace |
| FMF | Feminist Majority Foundation |
| FMF | Fetal Medicine Foundation |
| FMF | First MicroFinance Foundation |