S-Bahn Steiermark
The S-Bahn Steiermark is a local transport project that connects the metropolitan area of Graz and the central region of Upper Styria of the Austrian state of Styria. This project has been working since 1998. Commissioning took place on 9 December 2007.
Completion is scheduled for 2026. In the future, the S-Bahn should provide better connections in 15- or 30-minute intervals as well as air-conditioned and low-floor trains. In 2017, for example, there is an hourly train every sunday between the airport and the city of Graz. The 30-minute clock is maintained by the regional bus service. The attractiveness of rail transport has significantly increased passenger numbers, which is in line with the goal of counteracting the increase in motorized private transport with public transport.
S-Bahn lines
| S-Bahn line | Course | Name of track | Operationg company | In operation since |
| S1 | Graz — Peggau — Frohnleiten — Bruck an der Mur | Südbahn | ÖBB | 9. Dec. 2007 |
| S11 | — Peggau-Deutschfeistritz — Deutschfeistritz — Übelbach | Lokalbahn Peggau–Übelbach | Steiermärkische Landesbahnen | 9. Dec. 2007 |
| S3 | Graz — Gleisdorf — Feldbach — Fehring | Steirische Ostbahn | ÖBB | 12. Dec. 2010 |
| S31 | — Gleisdorf — Weiz | Landesbahn Gleisdorf–Weiz | StB | 12. Dec. 2010 |
| S5 | Graz — Leibnitz - Spielfeld-Straß | Südbahn | ÖBB | 9. Dec. 2007 |
| S51 | — Spielfeld-Straß — Bad Radkersburg | Radkersburger Bahn | ÖBB | 9. Dec. 2007 |
| S6 | Graz — Werndorf — Wies-Eibiswald | Koralmbahn and Wieserbahn | Graz-Köflacher Bahn | 12. Dec. 2010 |
| S61 | Graz — Lieboch — Wies-Eibiswald | Wieserbahn | GKB | 9. Dec. 2007 |
| S7 | Graz — Lieboch — Köflach | Köflacherbahn | GKB | 9. Dec. 2007 |
| S8 | Unzmarkt — Leoben — Bruck an der Mur | Rudolfsbahn | ÖBB | 11. Dec. 2016 |
| S9 | Bruck an der Mur — Kapfenberg — Mürzzuschlag | Südbahn | ÖBB | 11. Dec. 2016 |