| Abbreviation | Designation | |
|---|---|---|
| NB | NiedersachsenBahn, NiedersachsenBahn GmbH & Co. KG (NB) (German) | railway company |
| NL-NB | Noord-Brabant, Provincie Noord-Brabant (Dutch) North Brabant | country code |
| NB | Neubrandenburg (German) | fare point / vehicle registration plate |
| Nb | Näsberg (Swedish) | station code |