| Abbreviation | Designation | |
|---|---|---|
| STS | Städtebahn Service, STS Städtebahn Service GmbH (German) | railway company |
| Sts | Storsund (Swedish) | station code |
| STS | Elektronetz Saale-Thüringen-Südharz (German) | franchise / concession |
| STS | Saale-Thüringen-Südharz (ST) (German) | franchise / concession |