| Abbreviation | Definition |
|---|---|
| FARV-A | Field Artillery Resupply Vehicle-Ammunition |
| FAS | Field Artillery System |
| FAS | Field Assistance and Support |
| FAS | Force Accounting System |
| FAS | Foreign Agricultural Service (USDA) |
| FAS | Frequency Assignment Subcommittee |
| FAS | Fueling At Sea |
| FAS | Functional Account Symbol |
| FASC | Forward Area Signal Center |
| FASCAM | FAmily of SCAtterable Mines |
| FASCO | Forward Area Support Coordination Officer |
| FASCOM | Field Army Support Command |
| FASF | French Air and Space Force |
| FAST | Field Assessment Surveillance Team |
| FAST | Field Assistance in Science and Technology |
| FAST | Fleet Antiterrorism Security Team |
| FAST | Fleet Antiterrorism Support Team |
| FAST | Forward Area Support Team (terminal) |
| FASTA | Federal Acquisition STreamlining Act |
| FASTALS | Force Analysis Simulation of Theater Administrative and Logistics Support |