Breisgau S-Bahn
The Breisgau S-Bahn, branded as Breisgau-S-Bahn 2020, is an S-Bahn network centered on Freiburg im Breisgau in Baden-Württemberg, Germany.
Lines
The network comprises six lines, three operated by DB Regio Baden-Württemberg and three by SWEG Südwestdeutsche Landesverkehrs-AG :| Line | Route | Operator |
| –Freiburg Hauptbahnhof– | DB Regio Baden-Württemberg | |
| Freiburg Hauptbahnhof– | DB Regio Baden-Württemberg | |
| –Freiburg Hauptbahnhof– | DB Regio Baden-Württemberg | |
| Freiburg Hauptbahnhof– | SWEG | |
| – | SWEG | |
| Breisach– | SWEG |