| Abbreviation | Definition |
|---|---|
| FCAR | Fairfield City Automotive Repairs |
| FCAR | Florida Center for Automotive Research |
| FCC | Field Calibration Coil |
| FCD | Fuel Cut Defender |
| FCE | Final Control Element |
| FCEV | Fuel Cell Electric Vehicle |
| FCF1 | Fuji Control Fuse type 1 |
| FCF2 | Fuji Control Fuse Type 2 |
| FCFH | Full Color Flag Holder |
| FCFT | Furniss Cornish Fairings Triple pack |
| FCOC | Fuel-Cooled Oil Cooler |
| FCPC | Food and Consumer Products of Canada |
| FCPM | Food and Consumer Products Manufacturers |
| FCU | Fan Coil Unit |
| FCU | Fan Control Unit |
| FCW | Forward-Collision Warning |
| FDB | Fluid Dynamic Bearing |
| FDM | Fused Deposition Molding |
| FDP | Fibrinogen Degradation Products |
| FDS | Factory Default State |