| Abbreviation | Definition |
|---|---|
| FFF | Fight For Freedom |
| FFF | Flags, Flax, and Fodder |
| FFF | Form Follows Function |
| FFG | Guided-Missile Frigate |
| FFH | Fast Frequency Hopping |
| FFH | Flora, Fauna, and Habitat |
| FFH-Net | Fast-Frequency-Hopping Net |
| FFHT-Net | Fast-Frequency-Hopping Training Net |
| FFIR | Friendly Force Information Requirement |
| FFIR | Friendly Forces Information Requirements |
| FFIRN | Field Format Index Reference Number |
| FFLAV | Future Family of Light Armoured Vehicles |
| FFLD | Fit For Limited Duty |
| FFP | Food For Peace |
| FFRA | Force Flow Requirements Analysis |
| FFRAP | Force Flow Requirements Analysis Planning |
| FFRDC | Federally Funded R & D Center |
| FFRDC | Federally Funded Research & Development Center |
| FFRDCS | Federally Funded Research and Development Centers |
| FFS | Flogged by Firing Squad |