| Bern S-Bahn | |
|---|---|
 | |
 A BLS S-Bahn train at Thun in 2013 | |
| Overview | |
| Locale | Bern, Switzerland |
| Transit type | S-Bahn |
| Number of lines | 13 |
| Daily ridership | 175,000 (weekdays) |
| Website | S-Bahn Bern (in German) |
| Operation | |
| Began operation | 1974 (Bern) 1995 (regional) |
| Operator(s) | BLS AG Regionalverkehr Bern-Solothurn (RBS) |
| Technical | |
| Track gauge | 1,435 mm (4 ft 8+1⁄2 in) (BLS) 1,000 mm (3 ft 3+3⁄8 in) (RBS) |
The Bern S-Bahn (German: S-Bahn Bern; French: RER Berne) is an S-Bahn commuter rail network focused on Bern, the capital city of Switzerland. The network is roughly coterminous with Bern's urban agglomeration.
With approximately 9 million train kilometres per year, the Bern S-Bahn is the second-largest S-Bahn in Switzerland. It handles around 100,000 passengers daily (175,000 on weekdays), and thus carries the majority of the agglomeration's regional public transport traffic.