The Zug Stadtbahn (German: Stadtbahn Zug) is an S-Bahn-style commuter rail network centred on Zug, Switzerland.
Opened on 12 December 2004, the network forms part of the Central Switzerland S-Bahn project (German: S-Bahn Zentralschweiz), which also includes the Lucerne S-Bahn (German: S-Bahn Luzern).