 Federal Supply Classification | Military |
| Fire Support Coordinator | Military |
| Federal Supply Class | Military |
| Field Studies Council | Education |
| Forward Support Company | Military |
| Fairchild Space Company | Science |
| Fairmont State College | Education |
| Federal Stock Classification | Science |
| Federal Supply Category | Military |
| Federal Supply Code | Military |
| Fiber Start Code | Technology |
| Fire Support Coordination | Military |
| Foreign Sales Corporation | Business |
| Forest Stewardship Council | Government |
| Frame Synchronization Clock | Technology |
| Free Secretory Component | Medical |
| Fujitsu Siemens Computer | Technology |
| Factor Score Coefficient | Education |
| Faculty Support Centre | Education |
| Fail Safe Controller | Technology |