| Abbreviation | Definition |
|---|---|
| FRF | Fleet Reserve Force |
| FRG | Family Readiness Group |
| FRG | Federal Republic of Germany (now Germany) |
| FRG | Force Requirements Generator |
| FRH | Flameless Ration Heater |
| FRHF | Fire Resistant Hydraulic Fluid |
| FRIES | Fast Rope Insertion Extraction System |
| FRMAC | Federal Radiological Monitoring and Assessment Center (DOE) |
| FRMB | Fundamental Review of Military Budget |
| FRN | Force Requirement Number |
| FRO | Family Readiness Officer |
| FROG | Free Rocket Over Ground |
| FROM | Force Reception and Onward Movement |
| FRP | Federal Response Plan (USG) |
| FRP | Fixed Reception Pattern |
| FRP | Forces Reduction Programme |
| FRP | Full Rate Production |
| FRPA | Fixed Reception Pattern Antenna |
| FRR | Functional Requirements Review |
| FRRA | Fleet Reserve Retirement Authority |