| Abbreviation | Designation | |
|---|---|---|
| d | Gepäckraum / Fahrradabteil / Mehrzweckraum (German) luggage storage | classification |
| D | Gepäckwagen (German) luggage van / luggage coach | classification |
| 80 / DE | Deutschland, Bundesrepublik Deutschland (‘Berliner Republik’) (German) Germany, Federal Republic of Germany | country code |
| D | Schnellzug (German) express train | train category |
| D | Düsseldorf Hbf, Landeshauptstadt Düsseldorf (German) | fare point / vehicle registration plate |
| D | Degerön (Swedish) | station code |
| D | RB Dresden, Regionalbereich Dresden (German) | railway administration |
| SE-D | Södermanland, Södermanlands län (Swedish) | country code |
| D | Dalekobieżny pospieszny (Polish) | train category |