| Abbreviation | Designation | |
|---|---|---|
| FD | Fulda (German) | fare point / vehicle registration plate |
| 68 / FD | Darmstadt Hbf (German) | station code |
| Fd | Floda station (Swedish) | station code |
| FD | Fernschnellzug (German) | train category |
| FD | FernExpress (German) | train category |