The North Hessian city of Kassel has a tram network with an extension of about 93 kilometres. There is an interface to the railway network of Deutsche Bahn at the central station, which enables the so-called RegioTrams to continue their journey on the railway tracks to the surrounding towns. The RegioTram headway is 30 minutes to 1 hour. In addition, two railway lines were integrated into the regular tram network and electrified with 750 Volts DC. These are the outer branches of routes 4 (Hessisch Lichtenau) and 5 (Baunatal).

The trams are operated by → KVG (Kasseler Verkehrs-Gesellschaft), the RegioTrams by a joint venture of KVG and the railway company HLB (Hessische Landesbahn).