| Abbreviation | Designation | |
|---|---|---|
| HTB | HellertalBahn (German) | railway company |
| HB | Hauptbahnhof (Schweiz) (German) central station (Switzerland) | operating location |
| DE-HB | Bremen, Freie Hansestadt Bremen (German) | country code |
| HB | Bremen Hbf, Hansestadt Bremen (German) | fare point / vehicle registration plate |
| Hb | Helsingborg C (Swedish) | station code |
| HB | Hellertal-Bahn (NW/RP) (German) | franchise / concession |
| Harzbahn, Harzbahn GmbH (German) | railway company |