| Abbreviation | Designation | |
|---|---|---|
| W | Weiche (German) switch | railway installation |
| W | Watt (power) | railway technology |
| SE-W | Dalarna, Dalarnas län (Swedish) | country code |
| AT-W | Wien, Land Wien (German) Vienna | country code |
| W | Wuppertal Hbf, Stadt Wuppertal (German) | fare point / vehicle registration plate |
| W | RB Schwerin, Regionalbereich Schwerin (German) | railway administration |