| Abbreviation | Definition |
|---|---|
| FTL | Full TruckLoad |
| FTLU | Frontier Logistics |
| FTMZ | Fruit Growers Express |
| FTMZ | Fruit Growers Express Company |
| FTSX | Fairmont Tamper |
| FTTX | Trailer Train (TTX Corporation) |
| FTTX | TTX Company |
| FUARS | Forced Under A Railroad Station |
| FUCU | Shinko Pantec |
| FUCU | Shinko Pantec Company Limited |
| FURX | First Union Rail |
| FUS | Ferrocarriles Nacionales de Mexico |
| FUS | Ferrocarriles Unidos del Sureste (Ferrocarriles Nacionales de Mexico) |
| FVGU | Flexi-Van Corp |
| FVIU | Flexi-Van |
| FVIU | Flexi-Van Incorporated |
| FVIZ | Flexi-Van Leasing |
| FVIZ | Flexi-Van Leasing Incorporated |
| FVLZ | Venezuelan Line |
| FVPZ | Flexi-Van Leasing |