| Abbreviation | Designation | |
|---|---|---|
| SR | Sakartvelos Rkinigza (Georgian) | railway company |
| SR | ScotRail | railway company |
| SR | Straubing (German) | fare point / vehicle registration plate |
| Sr | Storå (Swedish) | station code |
| Surf&Rail (German) | rate for rail travel / ticket | |
| SR | Stahlberg Roensch (German) | rolling stock manufacturer |